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ddt: add support for prefetching tables into the ARC
This change adds a new `zpool prefetch -t ddt $pool` command which causes a pool's DDT to be loaded into the ARC. The primary goal is to remove the need to "warm" a pool's cache before deduplication stops slowing write performance. It may also provide a way to reload portions of a DDT if they have been flushed due to inactivity. Sponsored-by: iXsystems, Inc. Sponsored-by: Catalogics, Inc. Sponsored-by: Klara, Inc. Reviewed-by: Alexander Motin <mav@FreeBSD.org> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Allan Jude <allan@klarasystems.com> Signed-off-by: Will Andrews <will.andrews@klarasystems.com> Signed-off-by: Fred Weigel <fred.weigel@klarasystems.com> Signed-off-by: Rob Norris <rob.norris@klarasystems.com> Signed-off-by: Don Brady <don.brady@klarasystems.com> Co-authored-by: Will Andrews <will.andrews@klarasystems.com> Co-authored-by: Don Brady <don.brady@klarasystems.com> Closes #15890
This commit is contained in:
Allan Jude
GitHub
parent
2ed1aebaf6
commit
62e7d3c89e
@ -1985,8 +1985,8 @@ dump_ddt(ddt_t *ddt, ddt_type_t type, ddt_class_t class)
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(void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
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name,
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(u_longlong_t)count,
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(u_longlong_t)(dspace / count),
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(u_longlong_t)(mspace / count));
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(u_longlong_t)dspace,
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(u_longlong_t)mspace);
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if (dump_opt['D'] < 3)
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return;
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@ -32,7 +32,7 @@
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* Copyright (c) 2017, Intel Corporation.
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* Copyright (c) 2019, loli10K <ezomori.nozomu@gmail.com>
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* Copyright (c) 2021, Colm Buckley <colm@tuatha.org>
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* Copyright (c) 2021, Klara Inc.
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* Copyright (c) 2021, 2023, Klara Inc.
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* Copyright [2021] Hewlett Packard Enterprise Development LP
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*/
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@ -90,6 +90,7 @@ static int zpool_do_remove(int, char **);
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static int zpool_do_labelclear(int, char **);
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static int zpool_do_checkpoint(int, char **);
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static int zpool_do_prefetch(int, char **);
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static int zpool_do_list(int, char **);
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static int zpool_do_iostat(int, char **);
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@ -176,6 +177,7 @@ typedef enum {
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HELP_LIST,
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HELP_OFFLINE,
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HELP_ONLINE,
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HELP_PREFETCH,
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HELP_REPLACE,
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HELP_REMOVE,
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HELP_INITIALIZE,
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@ -307,6 +309,7 @@ static zpool_command_t command_table[] = {
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{ "labelclear", zpool_do_labelclear, HELP_LABELCLEAR },
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{ NULL },
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{ "checkpoint", zpool_do_checkpoint, HELP_CHECKPOINT },
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{ "prefetch", zpool_do_prefetch, HELP_PREFETCH },
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{ NULL },
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{ "list", zpool_do_list, HELP_LIST },
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{ "iostat", zpool_do_iostat, HELP_IOSTAT },
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@ -398,6 +401,9 @@ get_usage(zpool_help_t idx)
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return (gettext("\tlist [-gHLpPv] [-o property[,...]] "
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"[-T d|u] [pool] ... \n"
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"\t [interval [count]]\n"));
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case HELP_PREFETCH:
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return (gettext("\tprefetch -t <type> [<type opts>] <pool>\n"
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"\t -t ddt <pool>\n"));
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case HELP_OFFLINE:
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return (gettext("\toffline [--power]|[[-f][-t]] <pool> "
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"<device> ...\n"));
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@ -3827,6 +3833,72 @@ zpool_do_checkpoint(int argc, char **argv)
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#define CHECKPOINT_OPT 1024
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/*
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* zpool prefetch <type> [<type opts>] <pool>
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*
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* Prefetchs a particular type of data in the specified pool.
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*/
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int
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zpool_do_prefetch(int argc, char **argv)
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{
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int c;
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char *poolname;
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char *typestr = NULL;
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zpool_prefetch_type_t type;
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zpool_handle_t *zhp;
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int err = 0;
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while ((c = getopt(argc, argv, "t:")) != -1) {
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switch (c) {
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case 't':
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typestr = optarg;
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break;
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case ':':
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(void) fprintf(stderr, gettext("missing argument for "
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"'%c' option\n"), optopt);
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usage(B_FALSE);
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break;
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case '?':
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(void) fprintf(stderr, gettext("invalid option '%c'\n"),
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optopt);
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usage(B_FALSE);
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}
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}
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argc -= optind;
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argv += optind;
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if (argc < 1) {
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(void) fprintf(stderr, gettext("missing pool name argument\n"));
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usage(B_FALSE);
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}
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if (argc > 1) {
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(void) fprintf(stderr, gettext("too many arguments\n"));
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usage(B_FALSE);
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}
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poolname = argv[0];
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argc--;
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argv++;
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if (strcmp(typestr, "ddt") == 0) {
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type = ZPOOL_PREFETCH_DDT;
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} else {
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(void) fprintf(stderr, gettext("unsupported prefetch type\n"));
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usage(B_FALSE);
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}
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if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
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return (1);
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err = zpool_prefetch(zhp, type);
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zpool_close(zhp);
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return (err);
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}
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/*
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* zpool import [-d dir] [-D]
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* import [-o mntopts] [-o prop=value] ... [-R root] [-D] [-l]
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@ -6446,6 +6518,7 @@ print_one_column(zpool_prop_t prop, uint64_t value, const char *str,
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case ZPOOL_PROP_EXPANDSZ:
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case ZPOOL_PROP_CHECKPOINT:
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case ZPOOL_PROP_DEDUPRATIO:
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case ZPOOL_PROP_DEDUPCACHED:
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if (value == 0)
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(void) strlcpy(propval, "-", sizeof (propval));
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else
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@ -8792,13 +8865,17 @@ print_l2cache(zpool_handle_t *zhp, status_cbdata_t *cb, nvlist_t **l2cache,
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}
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static void
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print_dedup_stats(nvlist_t *config)
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print_dedup_stats(zpool_handle_t *zhp, nvlist_t *config, boolean_t literal)
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{
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ddt_histogram_t *ddh;
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ddt_stat_t *dds;
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ddt_object_t *ddo;
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uint_t c;
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char dspace[6], mspace[6];
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/* Extra space provided for literal display */
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char dspace[32], mspace[32], cspace[32];
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uint64_t cspace_prop;
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enum zfs_nicenum_format format;
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zprop_source_t src;
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/*
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* If the pool was faulted then we may not have been able to
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@ -8816,12 +8893,26 @@ print_dedup_stats(nvlist_t *config)
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return;
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}
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zfs_nicebytes(ddo->ddo_dspace, dspace, sizeof (dspace));
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zfs_nicebytes(ddo->ddo_mspace, mspace, sizeof (mspace));
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(void) printf("DDT entries %llu, size %s on disk, %s in core\n",
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/*
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* Squash cached size into in-core size to handle race.
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* Only include cached size if it is available.
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*/
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cspace_prop = zpool_get_prop_int(zhp, ZPOOL_PROP_DEDUPCACHED, &src);
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cspace_prop = MIN(cspace_prop, ddo->ddo_mspace);
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format = literal ? ZFS_NICENUM_RAW : ZFS_NICENUM_1024;
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zfs_nicenum_format(cspace_prop, cspace, sizeof (cspace), format);
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zfs_nicenum_format(ddo->ddo_dspace, dspace, sizeof (dspace), format);
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zfs_nicenum_format(ddo->ddo_mspace, mspace, sizeof (mspace), format);
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(void) printf("DDT entries %llu, size %s on disk, %s in core",
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(u_longlong_t)ddo->ddo_count,
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dspace,
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mspace);
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if (src != ZPROP_SRC_DEFAULT) {
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(void) printf(", %s cached (%.02f%%)",
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cspace,
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(double)cspace_prop / (double)ddo->ddo_mspace * 100.0);
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}
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(void) printf("\n");
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verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_STATS,
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(uint64_t **)&dds, &c) == 0);
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@ -8857,6 +8948,10 @@ status_callback(zpool_handle_t *zhp, void *data)
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uint_t c;
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vdev_stat_t *vs;
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/* If dedup stats were requested, also fetch dedupcached. */
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if (cbp->cb_dedup_stats > 1)
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zpool_add_propname(zhp, ZPOOL_DEDUPCACHED_PROP_NAME);
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config = zpool_get_config(zhp, NULL);
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reason = zpool_get_status(zhp, &msgid, &errata);
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@ -9338,7 +9433,7 @@ status_callback(zpool_handle_t *zhp, void *data)
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}
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if (cbp->cb_dedup_stats)
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print_dedup_stats(config);
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print_dedup_stats(zhp, config, cbp->cb_literal);
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} else {
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(void) printf(gettext("config: The configuration cannot be "
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"determined.\n"));
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@ -9412,7 +9507,8 @@ zpool_do_status(int argc, char **argv)
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cmd = optarg;
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break;
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case 'D':
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cb.cb_dedup_stats = B_TRUE;
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if (++cb.cb_dedup_stats > 2)
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cb.cb_dedup_stats = 2;
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break;
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case 'e':
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cb.cb_print_unhealthy = B_TRUE;
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18
cmd/ztest.c
18
cmd/ztest.c
@ -26,6 +26,7 @@
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* Copyright (c) 2014 Integros [integros.com]
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* Copyright 2017 Joyent, Inc.
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* Copyright (c) 2017, Intel Corporation.
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* Copyright (c) 2023, Klara, Inc.
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*/
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/*
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@ -444,6 +445,7 @@ ztest_func_t ztest_blake3;
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ztest_func_t ztest_fletcher;
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ztest_func_t ztest_fletcher_incr;
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ztest_func_t ztest_verify_dnode_bt;
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ztest_func_t ztest_pool_prefetch_ddt;
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static uint64_t zopt_always = 0ULL * NANOSEC; /* all the time */
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static uint64_t zopt_incessant = 1ULL * NANOSEC / 10; /* every 1/10 second */
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@ -499,6 +501,7 @@ static ztest_info_t ztest_info[] = {
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ZTI_INIT(ztest_fletcher, 1, &zopt_rarely),
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ZTI_INIT(ztest_fletcher_incr, 1, &zopt_rarely),
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ZTI_INIT(ztest_verify_dnode_bt, 1, &zopt_sometimes),
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ZTI_INIT(ztest_pool_prefetch_ddt, 1, &zopt_rarely),
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};
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#define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
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@ -6993,6 +6996,21 @@ ztest_fletcher_incr(ztest_ds_t *zd, uint64_t id)
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}
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}
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void
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ztest_pool_prefetch_ddt(ztest_ds_t *zd, uint64_t id)
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{
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(void) zd, (void) id;
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spa_t *spa;
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(void) pthread_rwlock_rdlock(&ztest_name_lock);
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VERIFY0(spa_open(ztest_opts.zo_pool, &spa, FTAG));
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ddt_prefetch_all(spa);
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spa_close(spa, FTAG);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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}
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static int
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ztest_set_global_vars(void)
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{
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@ -111,6 +111,7 @@ usr/share/man/man8/zpool-labelclear.8
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usr/share/man/man8/zpool-list.8
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usr/share/man/man8/zpool-offline.8
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usr/share/man/man8/zpool-online.8
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usr/share/man/man8/zpool-prefetch.8
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usr/share/man/man8/zpool-reguid.8
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usr/share/man/man8/zpool-remove.8
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usr/share/man/man8/zpool-reopen.8
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@ -458,6 +458,7 @@ _LIBZFS_H nvlist_t *zpool_get_config(zpool_handle_t *, nvlist_t **);
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_LIBZFS_H nvlist_t *zpool_get_features(zpool_handle_t *);
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_LIBZFS_H int zpool_refresh_stats(zpool_handle_t *, boolean_t *);
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_LIBZFS_H int zpool_get_errlog(zpool_handle_t *, nvlist_t **);
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_LIBZFS_H void zpool_add_propname(zpool_handle_t *, const char *);
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/*
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* Import and export functions
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@ -504,6 +505,8 @@ _LIBZFS_H int zpool_checkpoint(zpool_handle_t *);
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_LIBZFS_H int zpool_discard_checkpoint(zpool_handle_t *);
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_LIBZFS_H boolean_t zpool_is_draid_spare(const char *);
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_LIBZFS_H int zpool_prefetch(zpool_handle_t *, zpool_prefetch_type_t);
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/*
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* Basic handle manipulations. These functions do not create or destroy the
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* underlying datasets, only the references to them.
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@ -148,6 +148,9 @@ _LIBZFS_CORE_H int lzc_pool_checkpoint_discard(const char *);
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_LIBZFS_CORE_H int lzc_wait(const char *, zpool_wait_activity_t, boolean_t *);
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_LIBZFS_CORE_H int lzc_wait_tag(const char *, zpool_wait_activity_t, uint64_t,
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boolean_t *);
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_LIBZFS_CORE_H int lzc_pool_prefetch(const char *, zpool_prefetch_type_t);
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_LIBZFS_CORE_H int lzc_wait_fs(const char *, zfs_wait_activity_t, boolean_t *);
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_LIBZFS_CORE_H int lzc_set_bootenv(const char *, const nvlist_t *);
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@ -250,6 +250,16 @@ typedef struct arc_buf_info {
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enum zio_compress abi_l2arc_compress;
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} arc_buf_info_t;
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/*
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* Flags returned by arc_cached; describes which part of the arc
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* the block is cached in.
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*/
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#define ARC_CACHED_EMBEDDED (1U << 0)
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#define ARC_CACHED_IN_L1 (1U << 1)
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#define ARC_CACHED_IN_MRU (1U << 2)
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#define ARC_CACHED_IN_MFU (1U << 3)
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#define ARC_CACHED_IN_L2 (1U << 4)
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void arc_space_consume(uint64_t space, arc_space_type_t type);
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void arc_space_return(uint64_t space, arc_space_type_t type);
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boolean_t arc_is_metadata(arc_buf_t *buf);
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@ -310,6 +320,7 @@ zio_t *arc_write(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp,
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arc_prune_t *arc_add_prune_callback(arc_prune_func_t *func, void *priv);
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void arc_remove_prune_callback(arc_prune_t *p);
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void arc_freed(spa_t *spa, const blkptr_t *bp);
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int arc_cached(spa_t *spa, const blkptr_t *bp);
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void arc_flush(spa_t *spa, boolean_t retry);
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void arc_tempreserve_clear(uint64_t reserve);
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@ -236,6 +236,7 @@ extern void ddt_get_dedup_stats(spa_t *spa, ddt_stat_t *dds_total);
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extern uint64_t ddt_get_dedup_dspace(spa_t *spa);
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extern uint64_t ddt_get_pool_dedup_ratio(spa_t *spa);
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extern int ddt_get_pool_dedup_cached(spa_t *spa, uint64_t *psize);
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extern ddt_t *ddt_select(spa_t *spa, const blkptr_t *bp);
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extern void ddt_enter(ddt_t *ddt);
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@ -243,8 +244,9 @@ extern void ddt_exit(ddt_t *ddt);
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extern void ddt_init(void);
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extern void ddt_fini(void);
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extern ddt_entry_t *ddt_lookup(ddt_t *ddt, const blkptr_t *bp, boolean_t add);
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extern void ddt_prefetch(spa_t *spa, const blkptr_t *bp);
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extern void ddt_remove(ddt_t *ddt, ddt_entry_t *dde);
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extern void ddt_prefetch(spa_t *spa, const blkptr_t *bp);
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extern void ddt_prefetch_all(spa_t *spa);
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extern boolean_t ddt_class_contains(spa_t *spa, ddt_class_t max_class,
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const blkptr_t *bp);
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@ -47,6 +47,7 @@ typedef struct {
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const ddt_key_t *ddk);
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void (*ddt_op_prefetch)(objset_t *os, uint64_t object,
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const ddt_key_t *ddk);
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void (*ddt_op_prefetch_all)(objset_t *os, uint64_t object);
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int (*ddt_op_update)(objset_t *os, uint64_t object,
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const ddt_key_t *ddk, const ddt_phys_t *phys, size_t psize,
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dmu_tx_t *tx);
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@ -505,6 +505,12 @@ void dmu_object_set_checksum(objset_t *os, uint64_t object, uint8_t checksum,
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void dmu_object_set_compress(objset_t *os, uint64_t object, uint8_t compress,
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dmu_tx_t *tx);
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/*
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* Get an estimated cache size for an object. Caller must expect races.
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*/
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int dmu_object_cached_size(objset_t *os, uint64_t object,
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uint64_t *l1sz, uint64_t *l2sz);
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void dmu_write_embedded(objset_t *os, uint64_t object, uint64_t offset,
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void *data, uint8_t etype, uint8_t comp, int uncompressed_size,
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int compressed_size, int byteorder, dmu_tx_t *tx);
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@ -903,6 +909,8 @@ void dmu_prefetch(objset_t *os, uint64_t object, int64_t level, uint64_t offset,
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void dmu_prefetch_by_dnode(dnode_t *dn, int64_t level, uint64_t offset,
|
||||
uint64_t len, enum zio_priority pri);
|
||||
void dmu_prefetch_dnode(objset_t *os, uint64_t object, enum zio_priority pri);
|
||||
int dmu_prefetch_wait(objset_t *os, uint64_t object, uint64_t offset,
|
||||
uint64_t size);
|
||||
|
||||
typedef struct dmu_object_info {
|
||||
/* All sizes are in bytes unless otherwise indicated. */
|
||||
|
||||
@ -260,6 +260,7 @@ typedef enum {
|
||||
ZPOOL_PROP_BCLONERATIO,
|
||||
ZPOOL_PROP_DEDUP_TABLE_SIZE,
|
||||
ZPOOL_PROP_DEDUP_TABLE_QUOTA,
|
||||
ZPOOL_PROP_DEDUPCACHED,
|
||||
ZPOOL_NUM_PROPS
|
||||
} zpool_prop_t;
|
||||
|
||||
@ -1517,6 +1518,7 @@ typedef enum zfs_ioc {
|
||||
ZFS_IOC_VDEV_GET_PROPS, /* 0x5a55 */
|
||||
ZFS_IOC_VDEV_SET_PROPS, /* 0x5a56 */
|
||||
ZFS_IOC_POOL_SCRUB, /* 0x5a57 */
|
||||
ZFS_IOC_POOL_PREFETCH, /* 0x5a58 */
|
||||
|
||||
/*
|
||||
* Per-platform (Optional) - 8/128 numbers reserved.
|
||||
@ -1648,6 +1650,11 @@ typedef enum {
|
||||
ZFS_WAIT_NUM_ACTIVITIES
|
||||
} zfs_wait_activity_t;
|
||||
|
||||
typedef enum {
|
||||
ZPOOL_PREFETCH_NONE = 0,
|
||||
ZPOOL_PREFETCH_DDT
|
||||
} zpool_prefetch_type_t;
|
||||
|
||||
/*
|
||||
* Bookmark name values.
|
||||
*/
|
||||
@ -1686,6 +1693,17 @@ typedef enum {
|
||||
*/
|
||||
#define ZPOOL_HIDDEN_ARGS "hidden_args"
|
||||
|
||||
/*
|
||||
* The following is used when invoking ZFS_IOC_POOL_GET_PROPS.
|
||||
*/
|
||||
#define ZPOOL_GET_PROPS_NAMES "get_props_names"
|
||||
|
||||
/*
|
||||
* Opt-in property names used with ZPOOL_GET_PROPS_NAMES.
|
||||
* For example, properties that are hidden or expensive to compute.
|
||||
*/
|
||||
#define ZPOOL_DEDUPCACHED_PROP_NAME "dedupcached"
|
||||
|
||||
/*
|
||||
* The following are names used when invoking ZFS_IOC_POOL_INITIALIZE.
|
||||
*/
|
||||
@ -1725,6 +1743,11 @@ typedef enum {
|
||||
#define ZFS_WAIT_ACTIVITY "wait_activity"
|
||||
#define ZFS_WAIT_WAITED "wait_waited"
|
||||
|
||||
/*
|
||||
* The following are names used when invoking ZFS_IOC_POOL_PREFETCH.
|
||||
*/
|
||||
#define ZPOOL_PREFETCH_TYPE "prefetch_type"
|
||||
|
||||
/*
|
||||
* Flags for ZFS_IOC_VDEV_SET_STATE
|
||||
*/
|
||||
|
||||
@ -1198,6 +1198,8 @@ extern void spa_boot_init(void);
|
||||
/* properties */
|
||||
extern int spa_prop_set(spa_t *spa, nvlist_t *nvp);
|
||||
extern int spa_prop_get(spa_t *spa, nvlist_t **nvp);
|
||||
extern int spa_prop_get_nvlist(spa_t *spa, char **props,
|
||||
unsigned int n_props, nvlist_t **outnvl);
|
||||
extern void spa_prop_clear_bootfs(spa_t *spa, uint64_t obj, dmu_tx_t *tx);
|
||||
extern void spa_configfile_set(spa_t *, nvlist_t *, boolean_t);
|
||||
|
||||
|
||||
@ -225,6 +225,7 @@ int zap_lookup_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key,
|
||||
int key_numints, uint64_t integer_size, uint64_t num_integers, void *buf);
|
||||
int zap_contains(objset_t *ds, uint64_t zapobj, const char *name);
|
||||
int zap_prefetch(objset_t *os, uint64_t zapobj, const char *name);
|
||||
int zap_prefetch_object(objset_t *os, uint64_t zapobj);
|
||||
int zap_prefetch_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key,
|
||||
int key_numints);
|
||||
|
||||
|
||||
@ -457,6 +457,7 @@
|
||||
<elf-symbol name='zfs_wait_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='zfs_zpl_version_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='zpool_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='zpool_add_propname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='zpool_checkpoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='zpool_clear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='zpool_clear_label' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
@ -520,6 +521,7 @@
|
||||
<elf-symbol name='zpool_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='zpool_open_canfail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='zpool_pool_state_to_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='zpool_prefetch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='zpool_prepare_and_label_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='zpool_prepare_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='zpool_print_unsup_feat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
@ -1642,6 +1644,9 @@
|
||||
<class-decl name='uu_avl' is-struct='yes' visibility='default' is-declaration-only='yes' id='4af029d1'/>
|
||||
<class-decl name='uu_avl_pool' is-struct='yes' visibility='default' is-declaration-only='yes' id='12a530a8'/>
|
||||
<class-decl name='uu_avl_walk' is-struct='yes' visibility='default' is-declaration-only='yes' id='e70a39e3'/>
|
||||
<array-type-def dimensions='1' type-id='80f4b756' size-in-bits='256' id='71dc54ac'>
|
||||
<subrange length='4' type-id='7359adad' id='16fe7105'/>
|
||||
</array-type-def>
|
||||
<type-decl name='int' size-in-bits='32' id='95e97e5e'/>
|
||||
<type-decl name='long int' size-in-bits='64' id='bd54fe1a'/>
|
||||
<type-decl name='long long int' size-in-bits='64' id='1eb56b1e'/>
|
||||
@ -2096,7 +2101,7 @@
|
||||
<var-decl name='zfs_props_table' type-id='ae3e8ca6' visibility='default'/>
|
||||
</data-member>
|
||||
</class-decl>
|
||||
<class-decl name='zpool_handle' size-in-bits='2560' is-struct='yes' visibility='default' id='67002a8a'>
|
||||
<class-decl name='zpool_handle' size-in-bits='2816' is-struct='yes' visibility='default' id='67002a8a'>
|
||||
<data-member access='public' layout-offset-in-bits='0'>
|
||||
<var-decl name='zpool_hdl' type-id='b0382bb3' visibility='default'/>
|
||||
</data-member>
|
||||
@ -2109,19 +2114,25 @@
|
||||
<data-member access='public' layout-offset-in-bits='2176'>
|
||||
<var-decl name='zpool_state' type-id='95e97e5e' visibility='default'/>
|
||||
</data-member>
|
||||
<data-member access='public' layout-offset-in-bits='2208'>
|
||||
<var-decl name='zpool_n_propnames' type-id='f0981eeb' visibility='default'/>
|
||||
</data-member>
|
||||
<data-member access='public' layout-offset-in-bits='2240'>
|
||||
<var-decl name='zpool_config_size' type-id='b59d7dce' visibility='default'/>
|
||||
</data-member>
|
||||
<data-member access='public' layout-offset-in-bits='2304'>
|
||||
<var-decl name='zpool_config' type-id='5ce45b60' visibility='default'/>
|
||||
</data-member>
|
||||
<data-member access='public' layout-offset-in-bits='2368'>
|
||||
<var-decl name='zpool_old_config' type-id='5ce45b60' visibility='default'/>
|
||||
</data-member>
|
||||
<data-member access='public' layout-offset-in-bits='2432'>
|
||||
<var-decl name='zpool_props' type-id='5ce45b60' visibility='default'/>
|
||||
<var-decl name='zpool_propnames' type-id='71dc54ac' visibility='default'/>
|
||||
</data-member>
|
||||
<data-member access='public' layout-offset-in-bits='2496'>
|
||||
<var-decl name='zpool_config_size' type-id='b59d7dce' visibility='default'/>
|
||||
</data-member>
|
||||
<data-member access='public' layout-offset-in-bits='2560'>
|
||||
<var-decl name='zpool_config' type-id='5ce45b60' visibility='default'/>
|
||||
</data-member>
|
||||
<data-member access='public' layout-offset-in-bits='2624'>
|
||||
<var-decl name='zpool_old_config' type-id='5ce45b60' visibility='default'/>
|
||||
</data-member>
|
||||
<data-member access='public' layout-offset-in-bits='2688'>
|
||||
<var-decl name='zpool_props' type-id='5ce45b60' visibility='default'/>
|
||||
</data-member>
|
||||
<data-member access='public' layout-offset-in-bits='2752'>
|
||||
<var-decl name='zpool_start_block' type-id='804dc465' visibility='default'/>
|
||||
</data-member>
|
||||
</class-decl>
|
||||
@ -2923,7 +2934,8 @@
|
||||
<enumerator name='ZPOOL_PROP_BCLONERATIO' value='35'/>
|
||||
<enumerator name='ZPOOL_PROP_DEDUP_TABLE_SIZE' value='36'/>
|
||||
<enumerator name='ZPOOL_PROP_DEDUP_TABLE_QUOTA' value='37'/>
|
||||
<enumerator name='ZPOOL_NUM_PROPS' value='38'/>
|
||||
<enumerator name='ZPOOL_PROP_DEDUPCACHED' value='38'/>
|
||||
<enumerator name='ZPOOL_NUM_PROPS' value='39'/>
|
||||
</enum-decl>
|
||||
<typedef-decl name='zpool_prop_t' type-id='af1ba157' id='5d0c23fb'/>
|
||||
<typedef-decl name='regoff_t' type-id='95e97e5e' id='54a2a2a8'/>
|
||||
@ -5896,6 +5908,7 @@
|
||||
<enumerator name='ZFS_IOC_VDEV_GET_PROPS' value='23125'/>
|
||||
<enumerator name='ZFS_IOC_VDEV_SET_PROPS' value='23126'/>
|
||||
<enumerator name='ZFS_IOC_POOL_SCRUB' value='23127'/>
|
||||
<enumerator name='ZFS_IOC_POOL_PREFETCH' value='23128'/>
|
||||
<enumerator name='ZFS_IOC_PLATFORM' value='23168'/>
|
||||
<enumerator name='ZFS_IOC_EVENTS_NEXT' value='23169'/>
|
||||
<enumerator name='ZFS_IOC_EVENTS_CLEAR' value='23170'/>
|
||||
@ -5924,6 +5937,12 @@
|
||||
<enumerator name='ZPOOL_WAIT_NUM_ACTIVITIES' value='9'/>
|
||||
</enum-decl>
|
||||
<typedef-decl name='zpool_wait_activity_t' type-id='849338e3' id='73446457'/>
|
||||
<enum-decl name='zpool_prefetch_type_t' naming-typedef-id='e55ff6bc' id='0299ab50'>
|
||||
<underlying-type type-id='9cac1fee'/>
|
||||
<enumerator name='ZPOOL_PREFETCH_NONE' value='0'/>
|
||||
<enumerator name='ZPOOL_PREFETCH_DDT' value='1'/>
|
||||
</enum-decl>
|
||||
<typedef-decl name='zpool_prefetch_type_t' type-id='0299ab50' id='e55ff6bc'/>
|
||||
<enum-decl name='spa_feature' id='33ecb627'>
|
||||
<underlying-type type-id='9cac1fee'/>
|
||||
<enumerator name='SPA_FEATURE_NONE' value='-1'/>
|
||||
@ -5971,6 +5990,8 @@
|
||||
<enumerator name='SPA_FEATURES' value='41'/>
|
||||
</enum-decl>
|
||||
<typedef-decl name='spa_feature_t' type-id='33ecb627' id='d6618c78'/>
|
||||
<qualified-type-def type-id='80f4b756' const='yes' id='b99c00c9'/>
|
||||
<pointer-type-def type-id='b99c00c9' size-in-bits='64' id='13956559'/>
|
||||
<qualified-type-def type-id='22cce67b' const='yes' id='d2816df0'/>
|
||||
<pointer-type-def type-id='d2816df0' size-in-bits='64' id='3bbfee2e'/>
|
||||
<qualified-type-def type-id='b96825af' const='yes' id='2b61797f'/>
|
||||
@ -6063,6 +6084,11 @@
|
||||
<parameter type-id='37e3bd22'/>
|
||||
<return type-id='95e97e5e'/>
|
||||
</function-decl>
|
||||
<function-decl name='lzc_pool_prefetch' visibility='default' binding='global' size-in-bits='64'>
|
||||
<parameter type-id='80f4b756'/>
|
||||
<parameter type-id='e55ff6bc'/>
|
||||
<return type-id='95e97e5e'/>
|
||||
</function-decl>
|
||||
<function-decl name='lzc_set_bootenv' visibility='default' binding='global' size-in-bits='64'>
|
||||
<parameter type-id='80f4b756'/>
|
||||
<parameter type-id='22cce67b'/>
|
||||
@ -6208,6 +6234,13 @@
|
||||
<parameter type-id='9da381c4'/>
|
||||
<return type-id='48b5725f'/>
|
||||
</function-decl>
|
||||
<function-decl name='fnvlist_add_string_array' visibility='default' binding='global' size-in-bits='64'>
|
||||
<parameter type-id='5ce45b60'/>
|
||||
<parameter type-id='80f4b756'/>
|
||||
<parameter type-id='13956559'/>
|
||||
<parameter type-id='3502e3ff'/>
|
||||
<return type-id='48b5725f'/>
|
||||
</function-decl>
|
||||
<function-decl name='fnvlist_add_nvlist_array' visibility='default' binding='global' size-in-bits='64'>
|
||||
<parameter type-id='5ce45b60'/>
|
||||
<parameter type-id='80f4b756'/>
|
||||
@ -6396,6 +6429,11 @@
|
||||
<parameter type-id='4c81de99' name='zhp'/>
|
||||
<return type-id='95e97e5e'/>
|
||||
</function-decl>
|
||||
<function-decl name='zpool_prefetch' mangled-name='zpool_prefetch' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_prefetch'>
|
||||
<parameter type-id='4c81de99' name='zhp'/>
|
||||
<parameter type-id='e55ff6bc' name='type'/>
|
||||
<return type-id='95e97e5e'/>
|
||||
</function-decl>
|
||||
<function-decl name='zpool_add' mangled-name='zpool_add' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_add'>
|
||||
<parameter type-id='4c81de99' name='zhp'/>
|
||||
<parameter type-id='5ce45b60' name='nvroot'/>
|
||||
@ -6590,6 +6628,11 @@
|
||||
<parameter type-id='95e97e5e' name='name_flags'/>
|
||||
<return type-id='26a90f95'/>
|
||||
</function-decl>
|
||||
<function-decl name='zpool_add_propname' mangled-name='zpool_add_propname' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_add_propname'>
|
||||
<parameter type-id='4c81de99' name='zhp'/>
|
||||
<parameter type-id='80f4b756' name='propname'/>
|
||||
<return type-id='48b5725f'/>
|
||||
</function-decl>
|
||||
<function-decl name='zpool_get_errlog' mangled-name='zpool_get_errlog' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_get_errlog'>
|
||||
<parameter type-id='4c81de99' name='zhp'/>
|
||||
<parameter type-id='857bb57e' name='nverrlistp'/>
|
||||
@ -8689,7 +8732,6 @@
|
||||
</function-decl>
|
||||
</abi-instr>
|
||||
<abi-instr address-size='64' path='lib/libzutil/zutil_device_path.c' language='LANG_C99'>
|
||||
<pointer-type-def type-id='b99c00c9' size-in-bits='64' id='13956559'/>
|
||||
<function-decl name='zpool_default_search_paths' mangled-name='zpool_default_search_paths' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_default_search_paths'>
|
||||
<parameter type-id='78c01427'/>
|
||||
<return type-id='13956559'/>
|
||||
@ -9151,7 +9193,6 @@
|
||||
<array-type-def dimensions='1' type-id='b99c00c9' size-in-bits='2624' id='5ce15418'>
|
||||
<subrange length='41' type-id='7359adad' id='cb834f44'/>
|
||||
</array-type-def>
|
||||
<qualified-type-def type-id='80f4b756' const='yes' id='b99c00c9'/>
|
||||
<pointer-type-def type-id='8f92235e' size-in-bits='64' id='90421557'/>
|
||||
<function-decl name='nvpair_value_uint32' visibility='default' binding='global' size-in-bits='64'>
|
||||
<parameter type-id='dace003f'/>
|
||||
|
||||
@ -94,12 +94,15 @@ struct zfs_handle {
|
||||
* snapshots of volumes.
|
||||
*/
|
||||
#define ZFS_IS_VOLUME(zhp) ((zhp)->zfs_head_type == ZFS_TYPE_VOLUME)
|
||||
#define ZHP_MAX_PROPNAMES 4
|
||||
|
||||
struct zpool_handle {
|
||||
libzfs_handle_t *zpool_hdl;
|
||||
zpool_handle_t *zpool_next;
|
||||
char zpool_name[ZFS_MAX_DATASET_NAME_LEN];
|
||||
int zpool_state;
|
||||
unsigned int zpool_n_propnames;
|
||||
const char *zpool_propnames[ZHP_MAX_PROPNAMES];
|
||||
size_t zpool_config_size;
|
||||
nvlist_t *zpool_config;
|
||||
nvlist_t *zpool_old_config;
|
||||
|
||||
@ -79,6 +79,13 @@ zpool_get_all_props(zpool_handle_t *zhp)
|
||||
|
||||
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
|
||||
|
||||
if (zhp->zpool_n_propnames > 0) {
|
||||
nvlist_t *innvl = fnvlist_alloc();
|
||||
fnvlist_add_string_array(innvl, ZPOOL_GET_PROPS_NAMES,
|
||||
zhp->zpool_propnames, zhp->zpool_n_propnames);
|
||||
zcmd_write_src_nvlist(hdl, &zc, innvl);
|
||||
}
|
||||
|
||||
zcmd_alloc_dst_nvlist(hdl, &zc, 0);
|
||||
|
||||
while (zfs_ioctl(hdl, ZFS_IOC_POOL_GET_PROPS, &zc) != 0) {
|
||||
@ -318,6 +325,15 @@ zpool_get_prop(zpool_handle_t *zhp, zpool_prop_t prop, char *buf,
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*
|
||||
* ZPOOL_PROP_DEDUPCACHED can be fetched by name only using
|
||||
* the ZPOOL_GET_PROPS_NAMES mechanism
|
||||
*/
|
||||
if (prop == ZPOOL_PROP_DEDUPCACHED) {
|
||||
zpool_add_propname(zhp, ZPOOL_DEDUPCACHED_PROP_NAME);
|
||||
(void) zpool_get_all_props(zhp);
|
||||
}
|
||||
|
||||
if (zhp->zpool_props == NULL && zpool_get_all_props(zhp) &&
|
||||
prop != ZPOOL_PROP_NAME)
|
||||
return (-1);
|
||||
@ -361,6 +377,7 @@ zpool_get_prop(zpool_handle_t *zhp, zpool_prop_t prop, char *buf,
|
||||
case ZPOOL_PROP_BCLONESAVED:
|
||||
case ZPOOL_PROP_BCLONEUSED:
|
||||
case ZPOOL_PROP_DEDUP_TABLE_SIZE:
|
||||
case ZPOOL_PROP_DEDUPCACHED:
|
||||
if (literal)
|
||||
(void) snprintf(buf, len, "%llu",
|
||||
(u_longlong_t)intval);
|
||||
@ -1738,6 +1755,28 @@ zpool_discard_checkpoint(zpool_handle_t *zhp)
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Load data type for the given pool.
|
||||
*/
|
||||
int
|
||||
zpool_prefetch(zpool_handle_t *zhp, zpool_prefetch_type_t type)
|
||||
{
|
||||
libzfs_handle_t *hdl = zhp->zpool_hdl;
|
||||
char msg[1024];
|
||||
int error;
|
||||
|
||||
error = lzc_pool_prefetch(zhp->zpool_name, type);
|
||||
if (error != 0) {
|
||||
(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
|
||||
"cannot prefetch %s in '%s'"),
|
||||
type == ZPOOL_PREFETCH_DDT ? "ddt" : "", zhp->zpool_name);
|
||||
(void) zpool_standard_error(hdl, error, msg);
|
||||
return (-1);
|
||||
}
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Add the given vdevs to the pool. The caller must have already performed the
|
||||
* necessary verification to ensure that the vdev specification is well-formed.
|
||||
@ -4401,6 +4440,14 @@ zbookmark_mem_compare(const void *a, const void *b)
|
||||
return (memcmp(a, b, sizeof (zbookmark_phys_t)));
|
||||
}
|
||||
|
||||
void
|
||||
zpool_add_propname(zpool_handle_t *zhp, const char *propname)
|
||||
{
|
||||
assert(zhp->zpool_n_propnames < ZHP_MAX_PROPNAMES);
|
||||
zhp->zpool_propnames[zhp->zpool_n_propnames] = propname;
|
||||
zhp->zpool_n_propnames++;
|
||||
}
|
||||
|
||||
/*
|
||||
* Retrieve the persistent error log, uniquify the members, and return to the
|
||||
* caller.
|
||||
|
||||
@ -176,6 +176,7 @@
|
||||
<elf-symbol name='lzc_load_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='lzc_pool_checkpoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='lzc_pool_checkpoint_discard' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='lzc_pool_prefetch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='lzc_promote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='lzc_receive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
<elf-symbol name='lzc_receive_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
|
||||
@ -1428,6 +1429,7 @@
|
||||
<enumerator name='ZFS_IOC_VDEV_GET_PROPS' value='23125'/>
|
||||
<enumerator name='ZFS_IOC_VDEV_SET_PROPS' value='23126'/>
|
||||
<enumerator name='ZFS_IOC_POOL_SCRUB' value='23127'/>
|
||||
<enumerator name='ZFS_IOC_POOL_PREFETCH' value='23128'/>
|
||||
<enumerator name='ZFS_IOC_PLATFORM' value='23168'/>
|
||||
<enumerator name='ZFS_IOC_EVENTS_NEXT' value='23169'/>
|
||||
<enumerator name='ZFS_IOC_EVENTS_CLEAR' value='23170'/>
|
||||
@ -1462,6 +1464,12 @@
|
||||
<enumerator name='ZFS_WAIT_NUM_ACTIVITIES' value='1'/>
|
||||
</enum-decl>
|
||||
<typedef-decl name='zfs_wait_activity_t' type-id='527d5dc6' id='3024501a'/>
|
||||
<enum-decl name='zpool_prefetch_type_t' naming-typedef-id='e55ff6bc' id='0299ab50'>
|
||||
<underlying-type type-id='9cac1fee'/>
|
||||
<enumerator name='ZPOOL_PREFETCH_NONE' value='0'/>
|
||||
<enumerator name='ZPOOL_PREFETCH_DDT' value='1'/>
|
||||
</enum-decl>
|
||||
<typedef-decl name='zpool_prefetch_type_t' type-id='0299ab50' id='e55ff6bc'/>
|
||||
<enum-decl name='data_type_t' naming-typedef-id='8d0687d2' id='aeeae136'>
|
||||
<underlying-type type-id='9cac1fee'/>
|
||||
<enumerator name='DATA_TYPE_DONTCARE' value='-1'/>
|
||||
@ -2892,6 +2900,11 @@
|
||||
<parameter type-id='80f4b756' name='pool'/>
|
||||
<return type-id='95e97e5e'/>
|
||||
</function-decl>
|
||||
<function-decl name='lzc_pool_prefetch' mangled-name='lzc_pool_prefetch' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_pool_prefetch'>
|
||||
<parameter type-id='80f4b756' name='pool'/>
|
||||
<parameter type-id='e55ff6bc' name='type'/>
|
||||
<return type-id='95e97e5e'/>
|
||||
</function-decl>
|
||||
<function-decl name='lzc_channel_program_nosync' mangled-name='lzc_channel_program_nosync' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_channel_program_nosync'>
|
||||
<parameter type-id='80f4b756' name='pool'/>
|
||||
<parameter type-id='80f4b756' name='program'/>
|
||||
|
||||
@ -1629,6 +1629,26 @@ lzc_pool_checkpoint_discard(const char *pool)
|
||||
return (error);
|
||||
}
|
||||
|
||||
/*
|
||||
* Load the requested data type for the specified pool.
|
||||
*/
|
||||
int
|
||||
lzc_pool_prefetch(const char *pool, zpool_prefetch_type_t type)
|
||||
{
|
||||
int error;
|
||||
nvlist_t *result = NULL;
|
||||
nvlist_t *args = fnvlist_alloc();
|
||||
|
||||
fnvlist_add_int32(args, ZPOOL_PREFETCH_TYPE, type);
|
||||
|
||||
error = lzc_ioctl(ZFS_IOC_POOL_PREFETCH, pool, args, &result);
|
||||
|
||||
fnvlist_free(args);
|
||||
fnvlist_free(result);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
/*
|
||||
* Executes a read-only channel program.
|
||||
*
|
||||
|
||||
@ -83,6 +83,7 @@ dist_man_MANS = \
|
||||
%D%/man8/zpool-list.8 \
|
||||
%D%/man8/zpool-offline.8 \
|
||||
%D%/man8/zpool-online.8 \
|
||||
%D%/man8/zpool-prefetch.8 \
|
||||
%D%/man8/zpool-reguid.8 \
|
||||
%D%/man8/zpool-remove.8 \
|
||||
%D%/man8/zpool-reopen.8 \
|
||||
|
||||
@ -73,6 +73,10 @@ The amount of storage used by cloned blocks.
|
||||
Percentage of pool space used.
|
||||
This property can also be referred to by its shortened column name,
|
||||
.Sy cap .
|
||||
.It Sy dedupcached
|
||||
Total size of the deduplication table currently loaded into the ARC.
|
||||
See
|
||||
.Xr zpool-prefetch 8 .
|
||||
.It Sy dedup_table_size
|
||||
Total on-disk size of the deduplication table.
|
||||
.It Sy expandsize
|
||||
|
||||
46
man/man8/zpool-prefetch.8
Normal file
46
man/man8/zpool-prefetch.8
Normal file
@ -0,0 +1,46 @@
|
||||
.\"
|
||||
.\" CDDL HEADER START
|
||||
.\"
|
||||
.\" The contents of this file are subject to the terms of the
|
||||
.\" Common Development and Distribution License (the "License").
|
||||
.\" You may not use this file except in compliance with the License.
|
||||
.\"
|
||||
.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
.\" or http://www.opensolaris.org/os/licensing.
|
||||
.\" See the License for the specific language governing permissions
|
||||
.\" and limitations under the License.
|
||||
.\"
|
||||
.\" When distributing Covered Code, include this CDDL HEADER in each
|
||||
.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
.\" If applicable, add the following below this CDDL HEADER, with the
|
||||
.\" fields enclosed by brackets "[]" replaced with your own identifying
|
||||
.\" information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
.\"
|
||||
.\" CDDL HEADER END
|
||||
.\"
|
||||
.\"
|
||||
.\" Copyright (c) 2023, Klara Inc.
|
||||
.\"
|
||||
.Dd February 14, 2024
|
||||
.Dt ZPOOL-PREFETCH 8
|
||||
.Os
|
||||
.
|
||||
.Sh NAME
|
||||
.Nm zpool-prefetch
|
||||
.Nd Loads specific types of data for the given pool
|
||||
.Sh SYNOPSIS
|
||||
.Nm zpool
|
||||
.Cm prefetch
|
||||
.Fl t Ar type
|
||||
.Ar pool
|
||||
.Sh DESCRIPTION
|
||||
.Bl -tag -width Ds
|
||||
.It Xo
|
||||
.Nm zpool
|
||||
.Cm prefetch
|
||||
.Fl t Li ddt
|
||||
.Ar pool
|
||||
.Xc
|
||||
Prefetch data of a specific type for the given pool; specifically the DDT,
|
||||
which will improve write I/O performance when the DDT is resident in the ARC.
|
||||
.El
|
||||
@ -26,7 +26,7 @@
|
||||
.\" Copyright 2017 Nexenta Systems, Inc.
|
||||
.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
|
||||
.\"
|
||||
.Dd March 16, 2022
|
||||
.Dd February 14, 2024
|
||||
.Dt ZPOOL-STATUS 8
|
||||
.Os
|
||||
.
|
||||
@ -75,6 +75,8 @@ Display a histogram of deduplication statistics, showing the allocated
|
||||
and referenced
|
||||
.Pq logically referenced in the pool
|
||||
block counts and sizes by reference count.
|
||||
If repeated, (-DD), also shows statistics on how much of the DDT is resident
|
||||
in the ARC.
|
||||
.It Fl e
|
||||
Only show unhealthy vdevs (not-ONLINE or with errors).
|
||||
.It Fl g
|
||||
|
||||
@ -26,7 +26,7 @@
|
||||
.\" Copyright 2017 Nexenta Systems, Inc.
|
||||
.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
|
||||
.\"
|
||||
.Dd March 16, 2022
|
||||
.Dd February 14, 2024
|
||||
.Dt ZPOOL 8
|
||||
.Os
|
||||
.
|
||||
@ -168,6 +168,8 @@ specified.
|
||||
.
|
||||
.Ss Maintenance
|
||||
.Bl -tag -width Ds
|
||||
.It Xr zpool-prefetch 8
|
||||
Prefetches specific types of pool data.
|
||||
.It Xr zpool-scrub 8
|
||||
Begins a scrub or resumes a paused scrub.
|
||||
.It Xr zpool-checkpoint 8
|
||||
@ -598,6 +600,7 @@ don't wait.
|
||||
.Xr zpool-list 8 ,
|
||||
.Xr zpool-offline 8 ,
|
||||
.Xr zpool-online 8 ,
|
||||
.Xr zpool-prefetch 8 ,
|
||||
.Xr zpool-reguid 8 ,
|
||||
.Xr zpool-remove 8 ,
|
||||
.Xr zpool-reopen 8 ,
|
||||
|
||||
@ -183,6 +183,9 @@ zpool_prop_init(void)
|
||||
zprop_register_hidden(ZPOOL_PROP_DEDUPDITTO, "dedupditto",
|
||||
PROP_TYPE_NUMBER, PROP_DEFAULT, ZFS_TYPE_POOL, "DEDUPDITTO",
|
||||
B_FALSE, sfeatures);
|
||||
zprop_register_hidden(ZPOOL_PROP_DEDUPCACHED,
|
||||
ZPOOL_DEDUPCACHED_PROP_NAME, PROP_TYPE_NUMBER, PROP_READONLY,
|
||||
ZFS_TYPE_POOL, "DEDUPCACHED", B_FALSE, sfeatures);
|
||||
|
||||
zfs_mod_list_supported_free(sfeatures);
|
||||
}
|
||||
|
||||
@ -26,7 +26,7 @@
|
||||
* Copyright (c) 2017, Nexenta Systems, Inc. All rights reserved.
|
||||
* Copyright (c) 2019, loli10K <ezomori.nozomu@gmail.com>. All rights reserved.
|
||||
* Copyright (c) 2020, George Amanakis. All rights reserved.
|
||||
* Copyright (c) 2019, Klara Inc.
|
||||
* Copyright (c) 2019, 2023, Klara Inc.
|
||||
* Copyright (c) 2019, Allan Jude
|
||||
* Copyright (c) 2020, The FreeBSD Foundation [1]
|
||||
*
|
||||
@ -5471,6 +5471,57 @@ arc_read_done(zio_t *zio)
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Lookup the block at the specified DVA (in bp), and return the manner in
|
||||
* which the block is cached. A zero return indicates not cached.
|
||||
*/
|
||||
int
|
||||
arc_cached(spa_t *spa, const blkptr_t *bp)
|
||||
{
|
||||
arc_buf_hdr_t *hdr = NULL;
|
||||
kmutex_t *hash_lock = NULL;
|
||||
uint64_t guid = spa_load_guid(spa);
|
||||
int flags = 0;
|
||||
|
||||
if (BP_IS_EMBEDDED(bp))
|
||||
return (ARC_CACHED_EMBEDDED);
|
||||
|
||||
hdr = buf_hash_find(guid, bp, &hash_lock);
|
||||
if (hdr == NULL)
|
||||
return (0);
|
||||
|
||||
if (HDR_HAS_L1HDR(hdr)) {
|
||||
arc_state_t *state = hdr->b_l1hdr.b_state;
|
||||
/*
|
||||
* We switch to ensure that any future arc_state_type_t
|
||||
* changes are handled. This is just a shift to promote
|
||||
* more compile-time checking.
|
||||
*/
|
||||
switch (state->arcs_state) {
|
||||
case ARC_STATE_ANON:
|
||||
break;
|
||||
case ARC_STATE_MRU:
|
||||
flags |= ARC_CACHED_IN_MRU | ARC_CACHED_IN_L1;
|
||||
break;
|
||||
case ARC_STATE_MFU:
|
||||
flags |= ARC_CACHED_IN_MFU | ARC_CACHED_IN_L1;
|
||||
break;
|
||||
case ARC_STATE_UNCACHED:
|
||||
/* The header is still in L1, probably not for long */
|
||||
flags |= ARC_CACHED_IN_L1;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (HDR_HAS_L2HDR(hdr))
|
||||
flags |= ARC_CACHED_IN_L2;
|
||||
|
||||
mutex_exit(hash_lock);
|
||||
|
||||
return (flags);
|
||||
}
|
||||
|
||||
/*
|
||||
* "Read" the block at the specified DVA (in bp) via the
|
||||
* cache. If the block is found in the cache, invoke the provided
|
||||
|
||||
@ -23,7 +23,7 @@
|
||||
* Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
|
||||
* Copyright (c) 2012, 2016 by Delphix. All rights reserved.
|
||||
* Copyright (c) 2022 by Pawel Jakub Dawidek
|
||||
* Copyright (c) 2023, Klara Inc.
|
||||
* Copyright (c) 2019, 2023, Klara Inc.
|
||||
*/
|
||||
|
||||
#include <sys/zfs_context.h>
|
||||
@ -340,6 +340,16 @@ ddt_object_prefetch(ddt_t *ddt, ddt_type_t type, ddt_class_t class,
|
||||
ddt->ddt_object[type][class], ddk);
|
||||
}
|
||||
|
||||
static void
|
||||
ddt_object_prefetch_all(ddt_t *ddt, ddt_type_t type, ddt_class_t class)
|
||||
{
|
||||
if (!ddt_object_exists(ddt, type, class))
|
||||
return;
|
||||
|
||||
ddt_ops[type]->ddt_op_prefetch_all(ddt->ddt_os,
|
||||
ddt->ddt_object[type][class]);
|
||||
}
|
||||
|
||||
static int
|
||||
ddt_object_update(ddt_t *ddt, ddt_type_t type, ddt_class_t class,
|
||||
ddt_entry_t *dde, dmu_tx_t *tx)
|
||||
@ -652,6 +662,28 @@ ddt_over_quota(spa_t *spa)
|
||||
return (B_FALSE);
|
||||
}
|
||||
|
||||
void
|
||||
ddt_prefetch_all(spa_t *spa)
|
||||
{
|
||||
/*
|
||||
* Load all DDT entries for each type/class combination. This is
|
||||
* indended to perform a prefetch on all such blocks. For the same
|
||||
* reason that ddt_prefetch isn't locked, this is also not locked.
|
||||
*/
|
||||
for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
|
||||
ddt_t *ddt = spa->spa_ddt[c];
|
||||
if (!ddt)
|
||||
continue;
|
||||
|
||||
for (ddt_type_t type = 0; type < DDT_TYPES; type++) {
|
||||
for (ddt_class_t class = 0; class < DDT_CLASSES;
|
||||
class++) {
|
||||
ddt_object_prefetch_all(ddt, type, class);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
ddt_entry_t *
|
||||
ddt_lookup(ddt_t *ddt, const blkptr_t *bp, boolean_t add)
|
||||
{
|
||||
|
||||
@ -248,3 +248,32 @@ ddt_get_pool_dedup_ratio(spa_t *spa)
|
||||
|
||||
return (dds_total.dds_ref_dsize * 100 / dds_total.dds_dsize);
|
||||
}
|
||||
|
||||
int
|
||||
ddt_get_pool_dedup_cached(spa_t *spa, uint64_t *psize)
|
||||
{
|
||||
uint64_t l1sz, l1tot, l2sz, l2tot;
|
||||
int err = 0;
|
||||
|
||||
l1tot = l2tot = 0;
|
||||
*psize = 0;
|
||||
for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
|
||||
ddt_t *ddt = spa->spa_ddt[c];
|
||||
if (ddt == NULL)
|
||||
continue;
|
||||
for (ddt_type_t type = 0; type < DDT_TYPES; type++) {
|
||||
for (ddt_class_t class = 0; class < DDT_CLASSES;
|
||||
class++) {
|
||||
err = dmu_object_cached_size(ddt->ddt_os,
|
||||
ddt->ddt_object[type][class], &l1sz, &l2sz);
|
||||
if (err != 0)
|
||||
return (err);
|
||||
l1tot += l1sz;
|
||||
l2tot += l2sz;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
*psize = l1tot + l2tot;
|
||||
return (err);
|
||||
}
|
||||
|
||||
@ -147,6 +147,12 @@ ddt_zap_prefetch(objset_t *os, uint64_t object, const ddt_key_t *ddk)
|
||||
(void) zap_prefetch_uint64(os, object, (uint64_t *)ddk, DDT_KEY_WORDS);
|
||||
}
|
||||
|
||||
static void
|
||||
ddt_zap_prefetch_all(objset_t *os, uint64_t object)
|
||||
{
|
||||
(void) zap_prefetch_object(os, object);
|
||||
}
|
||||
|
||||
static int
|
||||
ddt_zap_update(objset_t *os, uint64_t object, const ddt_key_t *ddk,
|
||||
const ddt_phys_t *phys, size_t psize, dmu_tx_t *tx)
|
||||
@ -231,6 +237,7 @@ const ddt_ops_t ddt_zap_ops = {
|
||||
ddt_zap_lookup,
|
||||
ddt_zap_contains,
|
||||
ddt_zap_prefetch,
|
||||
ddt_zap_prefetch_all,
|
||||
ddt_zap_update,
|
||||
ddt_zap_remove,
|
||||
ddt_zap_walk,
|
||||
|
||||
212
module/zfs/dmu.c
212
module/zfs/dmu.c
@ -26,7 +26,7 @@
|
||||
* Copyright (c) 2016, Nexenta Systems, Inc. All rights reserved.
|
||||
* Copyright (c) 2015 by Chunwei Chen. All rights reserved.
|
||||
* Copyright (c) 2019 Datto Inc.
|
||||
* Copyright (c) 2019, Klara Inc.
|
||||
* Copyright (c) 2019, 2023, Klara Inc.
|
||||
* Copyright (c) 2019, Allan Jude
|
||||
* Copyright (c) 2022 Hewlett Packard Enterprise Development LP.
|
||||
* Copyright (c) 2021, 2022 by Pawel Jakub Dawidek
|
||||
@ -701,7 +701,7 @@ dmu_buf_rele_array(dmu_buf_t **dbp_fake, int numbufs, const void *tag)
|
||||
* Issue prefetch I/Os for the given blocks. If level is greater than 0, the
|
||||
* indirect blocks prefetched will be those that point to the blocks containing
|
||||
* the data starting at offset, and continuing to offset + len. If the range
|
||||
* it too long, prefetch the first dmu_prefetch_max bytes as requested, while
|
||||
* is too long, prefetch the first dmu_prefetch_max bytes as requested, while
|
||||
* for the rest only a higher level, also fitting within dmu_prefetch_max. It
|
||||
* should primarily help random reads, since for long sequential reads there is
|
||||
* a speculative prefetcher.
|
||||
@ -777,6 +777,106 @@ dmu_prefetch_by_dnode(dnode_t *dn, int64_t level, uint64_t offset,
|
||||
rw_exit(&dn->dn_struct_rwlock);
|
||||
}
|
||||
|
||||
typedef struct {
|
||||
kmutex_t dpa_lock;
|
||||
kcondvar_t dpa_cv;
|
||||
uint64_t dpa_pending_io;
|
||||
} dmu_prefetch_arg_t;
|
||||
|
||||
static void
|
||||
dmu_prefetch_done(void *arg, uint64_t level, uint64_t blkid, boolean_t issued)
|
||||
{
|
||||
(void) level; (void) blkid; (void)issued;
|
||||
dmu_prefetch_arg_t *dpa = arg;
|
||||
|
||||
ASSERT0(level);
|
||||
|
||||
mutex_enter(&dpa->dpa_lock);
|
||||
ASSERT3U(dpa->dpa_pending_io, >, 0);
|
||||
if (--dpa->dpa_pending_io == 0)
|
||||
cv_broadcast(&dpa->dpa_cv);
|
||||
mutex_exit(&dpa->dpa_lock);
|
||||
}
|
||||
|
||||
static void
|
||||
dmu_prefetch_wait_by_dnode(dnode_t *dn, uint64_t offset, uint64_t len)
|
||||
{
|
||||
dmu_prefetch_arg_t dpa;
|
||||
|
||||
mutex_init(&dpa.dpa_lock, NULL, MUTEX_DEFAULT, NULL);
|
||||
cv_init(&dpa.dpa_cv, NULL, CV_DEFAULT, NULL);
|
||||
|
||||
rw_enter(&dn->dn_struct_rwlock, RW_READER);
|
||||
|
||||
uint64_t start = dbuf_whichblock(dn, 0, offset);
|
||||
uint64_t end = dbuf_whichblock(dn, 0, offset + len - 1) + 1;
|
||||
dpa.dpa_pending_io = end - start;
|
||||
|
||||
for (uint64_t blk = start; blk < end; blk++) {
|
||||
(void) dbuf_prefetch_impl(dn, 0, blk, ZIO_PRIORITY_ASYNC_READ,
|
||||
0, dmu_prefetch_done, &dpa);
|
||||
}
|
||||
|
||||
rw_exit(&dn->dn_struct_rwlock);
|
||||
|
||||
/* wait for prefetch L0 reads to finish */
|
||||
mutex_enter(&dpa.dpa_lock);
|
||||
while (dpa.dpa_pending_io > 0) {
|
||||
cv_wait(&dpa.dpa_cv, &dpa.dpa_lock);
|
||||
|
||||
}
|
||||
mutex_exit(&dpa.dpa_lock);
|
||||
|
||||
mutex_destroy(&dpa.dpa_lock);
|
||||
cv_destroy(&dpa.dpa_cv);
|
||||
}
|
||||
|
||||
/*
|
||||
* Issue prefetch I/Os for the given L0 block range and wait for the I/O
|
||||
* to complete. This does not enforce dmu_prefetch_max and will prefetch
|
||||
* the entire range. The blocks are read from disk into the ARC but no
|
||||
* decompression occurs (i.e., the dbuf cache is not required).
|
||||
*/
|
||||
int
|
||||
dmu_prefetch_wait(objset_t *os, uint64_t object, uint64_t offset, uint64_t size)
|
||||
{
|
||||
dnode_t *dn;
|
||||
int err = 0;
|
||||
|
||||
err = dnode_hold(os, object, FTAG, &dn);
|
||||
if (err != 0)
|
||||
return (err);
|
||||
|
||||
/*
|
||||
* Chunk the requests (16 indirects worth) so that we can be interrupted
|
||||
*/
|
||||
uint64_t chunksize;
|
||||
if (dn->dn_indblkshift) {
|
||||
uint64_t nbps = bp_span_in_blocks(dn->dn_indblkshift, 1);
|
||||
chunksize = (nbps * 16) << dn->dn_datablkshift;
|
||||
} else {
|
||||
chunksize = dn->dn_datablksz;
|
||||
}
|
||||
|
||||
while (size > 0) {
|
||||
uint64_t mylen = MIN(size, chunksize);
|
||||
|
||||
dmu_prefetch_wait_by_dnode(dn, offset, mylen);
|
||||
|
||||
offset += mylen;
|
||||
size -= mylen;
|
||||
|
||||
if (issig()) {
|
||||
err = SET_ERROR(EINTR);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
dnode_rele(dn, FTAG);
|
||||
|
||||
return (err);
|
||||
}
|
||||
|
||||
/*
|
||||
* Issue prefetch I/Os for the given object's dnode.
|
||||
*/
|
||||
@ -1451,6 +1551,114 @@ dmu_write_uio(objset_t *os, uint64_t object, zfs_uio_t *uio, uint64_t size,
|
||||
}
|
||||
#endif /* _KERNEL */
|
||||
|
||||
static void
|
||||
dmu_cached_bps(spa_t *spa, blkptr_t *bps, uint_t nbps,
|
||||
uint64_t *l1sz, uint64_t *l2sz)
|
||||
{
|
||||
int cached_flags;
|
||||
|
||||
if (bps == NULL)
|
||||
return;
|
||||
|
||||
for (size_t blk_off = 0; blk_off < nbps; blk_off++) {
|
||||
blkptr_t *bp = &bps[blk_off];
|
||||
|
||||
if (BP_IS_HOLE(bp))
|
||||
continue;
|
||||
|
||||
cached_flags = arc_cached(spa, bp);
|
||||
if (cached_flags == 0)
|
||||
continue;
|
||||
|
||||
if ((cached_flags & (ARC_CACHED_IN_L1 | ARC_CACHED_IN_L2)) ==
|
||||
ARC_CACHED_IN_L2)
|
||||
*l2sz += BP_GET_LSIZE(bp);
|
||||
else
|
||||
*l1sz += BP_GET_LSIZE(bp);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Estimate DMU object cached size.
|
||||
*/
|
||||
int
|
||||
dmu_object_cached_size(objset_t *os, uint64_t object,
|
||||
uint64_t *l1sz, uint64_t *l2sz)
|
||||
{
|
||||
dnode_t *dn;
|
||||
dmu_object_info_t doi;
|
||||
int err = 0;
|
||||
|
||||
*l1sz = *l2sz = 0;
|
||||
|
||||
if (dnode_hold(os, object, FTAG, &dn) != 0)
|
||||
return (0);
|
||||
|
||||
if (dn->dn_nlevels < 2) {
|
||||
dnode_rele(dn, FTAG);
|
||||
return (0);
|
||||
}
|
||||
|
||||
dmu_object_info_from_dnode(dn, &doi);
|
||||
|
||||
for (uint64_t off = 0; off < doi.doi_max_offset;
|
||||
off += dmu_prefetch_max) {
|
||||
/* dbuf_read doesn't prefetch L1 blocks. */
|
||||
dmu_prefetch_by_dnode(dn, 1, off,
|
||||
dmu_prefetch_max, ZIO_PRIORITY_SYNC_READ);
|
||||
}
|
||||
|
||||
/*
|
||||
* Hold all valid L1 blocks, asking ARC the status of each BP
|
||||
* contained in each such L1 block.
|
||||
*/
|
||||
uint_t nbps = bp_span_in_blocks(dn->dn_indblkshift, 1);
|
||||
uint64_t l1blks = 1 + (dn->dn_maxblkid / nbps);
|
||||
|
||||
rw_enter(&dn->dn_struct_rwlock, RW_READER);
|
||||
for (uint64_t blk = 0; blk < l1blks; blk++) {
|
||||
dmu_buf_impl_t *db = NULL;
|
||||
|
||||
if (issig()) {
|
||||
/*
|
||||
* On interrupt, get out, and bubble up EINTR
|
||||
*/
|
||||
err = EINTR;
|
||||
break;
|
||||
}
|
||||
|
||||
/*
|
||||
* If we get an i/o error here, the L1 can't be read,
|
||||
* and nothing under it could be cached, so we just
|
||||
* continue. Ignoring the error from dbuf_hold_impl
|
||||
* or from dbuf_read is then a reasonable choice.
|
||||
*/
|
||||
err = dbuf_hold_impl(dn, 1, blk, B_TRUE, B_FALSE, FTAG, &db);
|
||||
if (err != 0) {
|
||||
/*
|
||||
* ignore error and continue
|
||||
*/
|
||||
err = 0;
|
||||
continue;
|
||||
}
|
||||
|
||||
err = dbuf_read(db, NULL, DB_RF_CANFAIL);
|
||||
if (err == 0) {
|
||||
dmu_cached_bps(dmu_objset_spa(os), db->db.db_data,
|
||||
nbps, l1sz, l2sz);
|
||||
}
|
||||
/*
|
||||
* error may be ignored, and we continue
|
||||
*/
|
||||
err = 0;
|
||||
dbuf_rele(db, FTAG);
|
||||
}
|
||||
rw_exit(&dn->dn_struct_rwlock);
|
||||
|
||||
dnode_rele(dn, FTAG);
|
||||
return (err);
|
||||
}
|
||||
|
||||
/*
|
||||
* Allocate a loaned anonymous arc buffer.
|
||||
*/
|
||||
|
||||
@ -34,7 +34,7 @@
|
||||
* Copyright (c) 2017, Intel Corporation.
|
||||
* Copyright (c) 2021, Colm Buckley <colm@tuatha.org>
|
||||
* Copyright (c) 2023 Hewlett Packard Enterprise Development LP.
|
||||
* Copyright (c) 2024, Klara Inc.
|
||||
* Copyright (c) 2023, 2024, Klara Inc.
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -337,6 +337,55 @@ spa_prop_add_list(nvlist_t *nvl, zpool_prop_t prop, const char *strval,
|
||||
nvlist_free(propval);
|
||||
}
|
||||
|
||||
static int
|
||||
spa_prop_add(spa_t *spa, const char *propname, nvlist_t *outnvl)
|
||||
{
|
||||
zpool_prop_t prop = zpool_name_to_prop(propname);
|
||||
zprop_source_t src = ZPROP_SRC_NONE;
|
||||
uint64_t intval;
|
||||
int err;
|
||||
|
||||
/*
|
||||
* NB: Not all properties lookups via this API require
|
||||
* the spa props lock, so they must explicitly grab it here.
|
||||
*/
|
||||
switch (prop) {
|
||||
case ZPOOL_PROP_DEDUPCACHED:
|
||||
err = ddt_get_pool_dedup_cached(spa, &intval);
|
||||
if (err != 0)
|
||||
return (SET_ERROR(err));
|
||||
break;
|
||||
default:
|
||||
return (SET_ERROR(EINVAL));
|
||||
}
|
||||
|
||||
spa_prop_add_list(outnvl, prop, NULL, intval, src);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
int
|
||||
spa_prop_get_nvlist(spa_t *spa, char **props, unsigned int n_props,
|
||||
nvlist_t **outnvl)
|
||||
{
|
||||
int err = 0;
|
||||
|
||||
if (props == NULL)
|
||||
return (0);
|
||||
|
||||
if (*outnvl == NULL) {
|
||||
err = nvlist_alloc(outnvl, NV_UNIQUE_NAME, KM_SLEEP);
|
||||
if (err)
|
||||
return (err);
|
||||
}
|
||||
|
||||
for (unsigned int i = 0; i < n_props && err == 0; i++) {
|
||||
err = spa_prop_add(spa, props[i], *outnvl);
|
||||
}
|
||||
|
||||
return (err);
|
||||
}
|
||||
|
||||
/*
|
||||
* Add a user property (source=src, propname=propval) to an nvlist.
|
||||
*/
|
||||
@ -503,9 +552,11 @@ spa_prop_get(spa_t *spa, nvlist_t **nvp)
|
||||
dsl_pool_t *dp;
|
||||
int err;
|
||||
|
||||
err = nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP);
|
||||
if (err)
|
||||
return (err);
|
||||
if (*nvp == NULL) {
|
||||
err = nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP);
|
||||
if (err)
|
||||
return (err);
|
||||
}
|
||||
|
||||
dp = spa_get_dsl(spa);
|
||||
dsl_pool_config_enter(dp, FTAG);
|
||||
|
||||
@ -1072,6 +1072,21 @@ zap_prefetch(objset_t *os, uint64_t zapobj, const char *name)
|
||||
return (err);
|
||||
}
|
||||
|
||||
int
|
||||
zap_prefetch_object(objset_t *os, uint64_t zapobj)
|
||||
{
|
||||
int error;
|
||||
dmu_object_info_t doi;
|
||||
|
||||
error = dmu_object_info(os, zapobj, &doi);
|
||||
if (error == 0 && DMU_OT_BYTESWAP(doi.doi_type) != DMU_BSWAP_ZAP)
|
||||
error = SET_ERROR(EINVAL);
|
||||
if (error == 0)
|
||||
dmu_prefetch_wait(os, zapobj, 0, doi.doi_max_offset);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
int
|
||||
zap_lookup_by_dnode(dnode_t *dn, const char *name,
|
||||
uint64_t integer_size, uint64_t num_integers, void *buf)
|
||||
@ -1784,6 +1799,7 @@ EXPORT_SYMBOL(zap_lookup_uint64);
|
||||
EXPORT_SYMBOL(zap_contains);
|
||||
EXPORT_SYMBOL(zap_prefetch);
|
||||
EXPORT_SYMBOL(zap_prefetch_uint64);
|
||||
EXPORT_SYMBOL(zap_prefetch_object);
|
||||
EXPORT_SYMBOL(zap_add);
|
||||
EXPORT_SYMBOL(zap_add_by_dnode);
|
||||
EXPORT_SYMBOL(zap_add_uint64);
|
||||
|
||||
@ -38,7 +38,7 @@
|
||||
* Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
|
||||
* Copyright (c) 2019 Datto Inc.
|
||||
* Copyright (c) 2019, 2020 by Christian Schwarz. All rights reserved.
|
||||
* Copyright (c) 2019, 2021, 2024, Klara Inc.
|
||||
* Copyright (c) 2019, 2021, 2023, 2024, Klara Inc.
|
||||
* Copyright (c) 2019, Allan Jude
|
||||
* Copyright 2024 Oxide Computer Company
|
||||
*/
|
||||
@ -3009,34 +3009,51 @@ zfs_ioc_pool_set_props(zfs_cmd_t *zc)
|
||||
return (error);
|
||||
}
|
||||
|
||||
static int
|
||||
zfs_ioc_pool_get_props(zfs_cmd_t *zc)
|
||||
{
|
||||
spa_t *spa;
|
||||
int error;
|
||||
nvlist_t *nvp = NULL;
|
||||
/*
|
||||
* innvl: {
|
||||
* "get_props_names": [ "prop1", "prop2", ..., "propN" ]
|
||||
* }
|
||||
*/
|
||||
|
||||
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
|
||||
static const zfs_ioc_key_t zfs_keys_get_props[] = {
|
||||
{ ZPOOL_GET_PROPS_NAMES, DATA_TYPE_STRING_ARRAY, ZK_OPTIONAL },
|
||||
};
|
||||
|
||||
static int
|
||||
zfs_ioc_pool_get_props(const char *pool, nvlist_t *innvl, nvlist_t *outnvl)
|
||||
{
|
||||
nvlist_t *nvp = outnvl;
|
||||
spa_t *spa;
|
||||
char **props = NULL;
|
||||
unsigned int n_props = 0;
|
||||
int error;
|
||||
|
||||
if (nvlist_lookup_string_array(innvl, ZPOOL_GET_PROPS_NAMES,
|
||||
&props, &n_props) != 0) {
|
||||
props = NULL;
|
||||
}
|
||||
|
||||
if ((error = spa_open(pool, &spa, FTAG)) != 0) {
|
||||
/*
|
||||
* If the pool is faulted, there may be properties we can still
|
||||
* get (such as altroot and cachefile), so attempt to get them
|
||||
* anyway.
|
||||
*/
|
||||
mutex_enter(&spa_namespace_lock);
|
||||
if ((spa = spa_lookup(zc->zc_name)) != NULL)
|
||||
if ((spa = spa_lookup(pool)) != NULL) {
|
||||
error = spa_prop_get(spa, &nvp);
|
||||
if (error == 0 && props != NULL)
|
||||
error = spa_prop_get_nvlist(spa, props, n_props,
|
||||
&nvp);
|
||||
}
|
||||
mutex_exit(&spa_namespace_lock);
|
||||
} else {
|
||||
error = spa_prop_get(spa, &nvp);
|
||||
if (error == 0 && props != NULL)
|
||||
error = spa_prop_get_nvlist(spa, props, n_props, &nvp);
|
||||
spa_close(spa, FTAG);
|
||||
}
|
||||
|
||||
if (error == 0 && zc->zc_nvlist_dst != 0)
|
||||
error = put_nvlist(zc, nvp);
|
||||
else
|
||||
error = SET_ERROR(EFAULT);
|
||||
|
||||
nvlist_free(nvp);
|
||||
return (error);
|
||||
}
|
||||
|
||||
@ -4031,6 +4048,52 @@ zfs_ioc_pool_discard_checkpoint(const char *poolname, nvlist_t *innvl,
|
||||
return (spa_checkpoint_discard(poolname));
|
||||
}
|
||||
|
||||
/*
|
||||
* Loads specific types of data for the given pool
|
||||
*
|
||||
* innvl: {
|
||||
* "prefetch_type" -> int32_t
|
||||
* }
|
||||
*
|
||||
* outnvl: empty
|
||||
*/
|
||||
static const zfs_ioc_key_t zfs_keys_pool_prefetch[] = {
|
||||
{ZPOOL_PREFETCH_TYPE, DATA_TYPE_INT32, 0},
|
||||
};
|
||||
|
||||
static int
|
||||
zfs_ioc_pool_prefetch(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
|
||||
{
|
||||
(void) outnvl;
|
||||
|
||||
int error;
|
||||
spa_t *spa;
|
||||
int32_t type;
|
||||
|
||||
/*
|
||||
* Currently, only ZPOOL_PREFETCH_DDT is supported
|
||||
*/
|
||||
if (nvlist_lookup_int32(innvl, ZPOOL_PREFETCH_TYPE, &type) != 0 ||
|
||||
type != ZPOOL_PREFETCH_DDT) {
|
||||
return (EINVAL);
|
||||
}
|
||||
|
||||
error = spa_open(poolname, &spa, FTAG);
|
||||
if (error != 0)
|
||||
return (error);
|
||||
|
||||
hrtime_t start_time = gethrtime();
|
||||
|
||||
ddt_prefetch_all(spa);
|
||||
|
||||
zfs_dbgmsg("pool '%s': loaded ddt into ARC in %llu ms", spa->spa_name,
|
||||
(u_longlong_t)NSEC2MSEC(gethrtime() - start_time));
|
||||
|
||||
spa_close(spa, FTAG);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
/*
|
||||
* inputs:
|
||||
* zc_name name of dataset to destroy
|
||||
@ -7283,6 +7346,12 @@ zfs_ioctl_init(void)
|
||||
zfs_keys_pool_discard_checkpoint,
|
||||
ARRAY_SIZE(zfs_keys_pool_discard_checkpoint));
|
||||
|
||||
zfs_ioctl_register("zpool_prefetch",
|
||||
ZFS_IOC_POOL_PREFETCH, zfs_ioc_pool_prefetch,
|
||||
zfs_secpolicy_config, POOL_NAME,
|
||||
POOL_CHECK_SUSPENDED, B_TRUE, B_TRUE,
|
||||
zfs_keys_pool_prefetch, ARRAY_SIZE(zfs_keys_pool_prefetch));
|
||||
|
||||
zfs_ioctl_register("initialize", ZFS_IOC_POOL_INITIALIZE,
|
||||
zfs_ioc_pool_initialize, zfs_secpolicy_config, POOL_NAME,
|
||||
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
|
||||
@ -7328,6 +7397,11 @@ zfs_ioctl_init(void)
|
||||
POOL_CHECK_NONE, B_TRUE, B_TRUE,
|
||||
zfs_keys_pool_scrub, ARRAY_SIZE(zfs_keys_pool_scrub));
|
||||
|
||||
zfs_ioctl_register("get_props", ZFS_IOC_POOL_GET_PROPS,
|
||||
zfs_ioc_pool_get_props, zfs_secpolicy_read, POOL_NAME,
|
||||
POOL_CHECK_NONE, B_FALSE, B_FALSE,
|
||||
zfs_keys_get_props, ARRAY_SIZE(zfs_keys_get_props));
|
||||
|
||||
/* IOCTLS that use the legacy function signature */
|
||||
|
||||
zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze,
|
||||
@ -7383,8 +7457,6 @@ zfs_ioctl_init(void)
|
||||
|
||||
zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats,
|
||||
zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE);
|
||||
zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props,
|
||||
zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE);
|
||||
|
||||
zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log,
|
||||
zfs_secpolicy_inject, B_FALSE, POOL_CHECK_SUSPENDED);
|
||||
|
||||
@ -208,6 +208,10 @@ tests = ['zfs_create_001_pos', 'zfs_create_002_pos', 'zfs_create_003_pos',
|
||||
'zfs_create_verbose']
|
||||
tags = ['functional', 'cli_root', 'zfs_create']
|
||||
|
||||
[tests/functional/cli_root/zpool_prefetch]
|
||||
tests = ['zpool_prefetch_001_pos']
|
||||
tags = ['functional', 'cli_root', 'zpool_prefetch']
|
||||
|
||||
[tests/functional/cli_root/zfs_destroy]
|
||||
tests = ['zfs_clone_livelist_condense_and_disable',
|
||||
'zfs_clone_livelist_condense_races', 'zfs_clone_livelist_dedup',
|
||||
|
||||
@ -1176,6 +1176,9 @@ nobase_dist_datadir_zfs_tests_tests_SCRIPTS += \
|
||||
functional/cli_root/zpool_online/setup.ksh \
|
||||
functional/cli_root/zpool_online/zpool_online_001_pos.ksh \
|
||||
functional/cli_root/zpool_online/zpool_online_002_neg.ksh \
|
||||
functional/cli_root/zpool_prefetch/cleanup.ksh \
|
||||
functional/cli_root/zpool_prefetch/setup.ksh \
|
||||
functional/cli_root/zpool_prefetch/zpool_prefetch_001_pos.ksh \
|
||||
functional/cli_root/zpool_remove/cleanup.ksh \
|
||||
functional/cli_root/zpool_remove/setup.ksh \
|
||||
functional/cli_root/zpool_remove/zpool_remove_001_neg.ksh \
|
||||
|
||||
30
tests/zfs-tests/tests/functional/cli_root/zpool_prefetch/cleanup.ksh
Executable file
30
tests/zfs-tests/tests/functional/cli_root/zpool_prefetch/cleanup.ksh
Executable file
@ -0,0 +1,30 @@
|
||||
#!/bin/ksh -p
|
||||
#
|
||||
# CDDL HEADER START
|
||||
#
|
||||
# The contents of this file are subject to the terms of the
|
||||
# Common Development and Distribution License (the "License").
|
||||
# You may not use this file except in compliance with the License.
|
||||
#
|
||||
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
# or http://www.opensolaris.org/os/licensing.
|
||||
# See the License for the specific language governing permissions
|
||||
# and limitations under the License.
|
||||
#
|
||||
# When distributing Covered Code, include this CDDL HEADER in each
|
||||
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
# If applicable, add the following below this CDDL HEADER, with the
|
||||
# fields enclosed by brackets "[]" replaced with your own identifying
|
||||
# information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
#
|
||||
# CDDL HEADER END
|
||||
#
|
||||
|
||||
#
|
||||
# Copyright 2007 Sun Microsystems, Inc. All rights reserved.
|
||||
# Use is subject to license terms.
|
||||
#
|
||||
|
||||
. $STF_SUITE/include/libtest.shlib
|
||||
|
||||
default_cleanup
|
||||
32
tests/zfs-tests/tests/functional/cli_root/zpool_prefetch/setup.ksh
Executable file
32
tests/zfs-tests/tests/functional/cli_root/zpool_prefetch/setup.ksh
Executable file
@ -0,0 +1,32 @@
|
||||
#!/bin/ksh -p
|
||||
#
|
||||
# CDDL HEADER START
|
||||
#
|
||||
# The contents of this file are subject to the terms of the
|
||||
# Common Development and Distribution License (the "License").
|
||||
# You may not use this file except in compliance with the License.
|
||||
#
|
||||
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
# or http://www.opensolaris.org/os/licensing.
|
||||
# See the License for the specific language governing permissions
|
||||
# and limitations under the License.
|
||||
#
|
||||
# When distributing Covered Code, include this CDDL HEADER in each
|
||||
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
# If applicable, add the following below this CDDL HEADER, with the
|
||||
# fields enclosed by brackets "[]" replaced with your own identifying
|
||||
# information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
#
|
||||
# CDDL HEADER END
|
||||
#
|
||||
|
||||
#
|
||||
# Copyright 2007 Sun Microsystems, Inc. All rights reserved.
|
||||
# Use is subject to license terms.
|
||||
#
|
||||
|
||||
. $STF_SUITE/include/libtest.shlib
|
||||
|
||||
DISK=${DISKS%% *}
|
||||
|
||||
default_setup $DISK
|
||||
@ -0,0 +1,128 @@
|
||||
#!/bin/ksh -p
|
||||
#
|
||||
# CDDL HEADER START
|
||||
#
|
||||
# The contents of this file are subject to the terms of the
|
||||
# Common Development and Distribution License (the "License").
|
||||
# You may not use this file except in compliance with the License.
|
||||
#
|
||||
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
# or http://www.opensolaris.org/os/licensing.
|
||||
# See the License for the specific language governing permissions
|
||||
# and limitations under the License.
|
||||
#
|
||||
# When distributing Covered Code, include this CDDL HEADER in each
|
||||
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
# If applicable, add the following below this CDDL HEADER, with the
|
||||
# fields enclosed by brackets "[]" replaced with your own identifying
|
||||
# information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
#
|
||||
# CDDL HEADER END
|
||||
#
|
||||
|
||||
#
|
||||
# Copyright (c) 2019, 2023 by Klara Inc. All rights reserved.
|
||||
#
|
||||
|
||||
. $STF_SUITE/include/libtest.shlib
|
||||
|
||||
#
|
||||
# DESCRIPTION:
|
||||
# 'zpool prefetch -t ddt <pool>' can successfully load a pool's DDT on demand.
|
||||
#
|
||||
# STRATEGY:
|
||||
# 1. Build up storage pool with deduplicated dataset.
|
||||
# 2. Export the pool.
|
||||
# 3. Import the pool, and use zpool prefetch -t ddt to load its table.
|
||||
# 4. Verify the DDT was loaded successfully using ddt cache stats
|
||||
#
|
||||
|
||||
verify_runnable "both"
|
||||
|
||||
log_assert "'zpool prefetch -t ddt <pool>' can successfully load the DDT for a pool."
|
||||
|
||||
function getddtstats
|
||||
{
|
||||
typeset -n gds=$1
|
||||
typeset pool=$2
|
||||
|
||||
out=$(zpool status -DDp $pool | awk '/^ dedup: / {print $6 " " $9 " " $12}')
|
||||
log_note "status -DDp output: ${out}"
|
||||
|
||||
gds.ondisk=$(echo $out | cut -d" " -f1)
|
||||
gds.incore=$(echo $out | cut -d" " -f2)
|
||||
gds.cached=$(echo $out | cut -d" " -f3)
|
||||
|
||||
# In case of missing data, reset to 0. This should normally be due
|
||||
# to a pool without any DDT.
|
||||
[ -z "${gds.ondisk}" ] && gds.ondisk="0"
|
||||
[ -z "${gds.incore}" ] && gds.incore="0"
|
||||
[ -z "${gds.cached}" ] && gds.cached="0"
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
# Confirm that nothing happens on a standard pool config.
|
||||
typeset -A before
|
||||
log_must getddtstats before $TESTPOOL
|
||||
log_note "before stats: ${before}"
|
||||
log_must test "${before.ondisk}" -eq "0"
|
||||
log_must test "${before.incore}" -eq "0"
|
||||
log_must test "${before.cached}" -eq "0"
|
||||
log_must zpool prefetch -t ddt $TESTPOOL
|
||||
|
||||
# Build up the deduplicated dataset. This consists of creating enough files
|
||||
# to generate a reasonable size DDT for testing purposes.
|
||||
|
||||
DATASET=$TESTPOOL/ddt
|
||||
log_must zfs create -o dedup=on $DATASET
|
||||
MNTPOINT=$(get_prop mountpoint $TESTPOOL/ddt)
|
||||
|
||||
log_note "Generating dataset ..."
|
||||
typeset -i i=0
|
||||
while (( i < 16384 )); do
|
||||
echo -n $i > $MNTPOINT/f.$i
|
||||
|
||||
# Create some copies of the original mainly for the purpose of
|
||||
# having duplicate entries. About half will have no copies, while
|
||||
# the remainder will have an equal distribution of 1-4 copies,
|
||||
# depending on the number put into the original.
|
||||
typeset -i j
|
||||
((j = i % 8))
|
||||
while (( j < 4 )); do
|
||||
cp $MNTPOINT/f.$i $MNTPOINT/f.$i.$j
|
||||
((j += 1))
|
||||
done
|
||||
((i += 1))
|
||||
done
|
||||
log_note "Dataset generation completed."
|
||||
|
||||
typeset -A generated
|
||||
log_must getddtstats generated $TESTPOOL
|
||||
log_note "generated stats: ${generated}"
|
||||
log_must test "${generated.ondisk}" -ge "1048576"
|
||||
log_must test "${generated.incore}" -ge "1048576"
|
||||
log_must test "${generated.cached}" -ge "1048576"
|
||||
log_must zpool prefetch -t ddt $TESTPOOL
|
||||
|
||||
# Do an export/import series to flush the DDT dataset cache.
|
||||
typeset -A reimport
|
||||
log_must zpool export $TESTPOOL
|
||||
log_must zpool import $TESTPOOL
|
||||
log_must getddtstats reimport $TESTPOOL
|
||||
log_note "reimport stats: ${reimport}"
|
||||
log_must test "${reimport.ondisk}" -ge "1048576"
|
||||
log_must test "${reimport.incore}" -ge "1048576"
|
||||
# On reimport, only the first block or two should be cached.
|
||||
log_must test "${reimport.cached}" -le "65536"
|
||||
|
||||
# Finally, reload it and check again.
|
||||
typeset -A reloaded
|
||||
log_must zpool prefetch -t ddt $TESTPOOL
|
||||
log_must getddtstats reloaded $TESTPOOL
|
||||
log_note "reloaded stats: ${reloaded}"
|
||||
log_must test "${reloaded.ondisk}" -ge "1048576"
|
||||
log_must test "${reloaded.incore}" -ge "1048576"
|
||||
log_must test "${reloaded.cached}" -eq "${reloaded.incore}"
|
||||
|
||||
log_pass "'zpool prefetch -t ddt <pool>' success."
|
||||
Loading…
Reference in New Issue
Block a user