Alexander Motin 15177c1aac Compact dbuf/buf hashes and lock arrays ... With default dbuf cache size of 1/32 of ARC, it makes no sense to have hash table of the same size (or even bigger on Linux). Reduce it to 1/8 of ARC's one, still leaving some slack, assuming higher I/O rate via dbuf cache than via ARC. Remove padding from ARC hash locks array. The idea behind padding is to avoid false sharing between locks. It would have sense if there would be a limited number of very busy locks. But since we have no limit on the number, using the same memory for more locks we can achieve even lower lock contention with the same false sharing, or we can use less memory for the same contention level. Reduce number of hash locks from 8192 to 2048. The number is still big enough to not cause contention, but reduced memory size improves cache hit rate for mutex_tryenter() in ARC eviction thread, saving about 1% of the thread time. Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Alexander Motin <mav@FreeBSD.org> Closes #12289		2021-09-14 12:22:46 -07:00
..
abd.c	Fix abd leak, kmem_free correct size of abd_t	2021-09-14 12:22:28 -07:00
aggsum.c	More aggsum optimizations	2021-06-09 13:05:34 -07:00
arc.c	Compact dbuf/buf hashes and lock arrays	2021-09-14 12:22:46 -07:00
blkptr.c	Add zstd support to zfs	2020-08-20 10:30:06 -07:00
bplist.c	Fast Clone Deletion	2019-07-26 10:54:14 -07:00
bpobj.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
bptree.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
bqueue.c	Implement Redacted Send/Receive	2019-06-19 09:48:12 -07:00
btree.c	Fix typo in btree.c	2020-08-17 15:25:37 -07:00
dataset_kstats.c	Introduce write-mostly sums	2021-06-09 13:05:34 -07:00
dbuf_stats.c	Eliminate gratuitous bzeroing in dbuf_stats_hash_table_data	2020-09-30 13:24:38 -07:00
dbuf.c	Compact dbuf/buf hashes and lock arrays	2021-09-14 12:22:46 -07:00
ddt_zap.c	Refactor dnode dirty context from dbuf_dirty	2020-02-26 16:09:17 -08:00
ddt.c	Remove dead code	2020-06-18 12:21:18 -07:00
dmu_diff.c	Mark write_record static	2019-12-03 09:51:44 -08:00
dmu_object.c	Introduce CPU_SEQID_UNSTABLE	2020-11-02 11:51:12 -08:00
dmu_objset.c	Avoid 64bit division in multilist index functions	2021-06-29 13:15:04 -07:00
dmu_recv.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
dmu_redact.c	Fix dnode refcount tracking	2020-11-10 10:37:10 -08:00
dmu_send.c	implicit conversion from 'boolean_t' to 'ds_hold_flags_t'	2020-12-27 16:31:02 -08:00
dmu_traverse.c	ZFS traverse_visitbp optimization to limit prefetch	2021-04-19 15:22:57 -07:00
dmu_tx.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
dmu_zfetch.c	Upstream: dmu_zfetch_stream_fini leaks refcount	2021-09-14 12:21:55 -07:00
dmu.c	Split dmu_zfetch() speculation and execution parts	2021-03-19 22:56:11 -07:00
dnode_sync.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
dnode.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
dsl_bookmark.c	Fix various typos	2021-04-07 13:27:11 -07:00
dsl_crypt.c	Revert "Fix raw sends on encrypted datasets when copying back snapshots"	2021-05-27 22:10:13 -07:00
dsl_dataset.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
dsl_deadlist.c	Livelist logic should handle dedup blkptrs	2021-06-09 13:05:34 -07:00
dsl_deleg.c	Reduce loaded range tree memory usage	2019-10-09 10:36:03 -07:00
dsl_destroy.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
dsl_dir.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
dsl_pool.c	Re-embed multilist_t storage	2021-06-10 10:50:16 -07:00
dsl_prop.c	Replace sprintf()->snprintf() and strcpy()->strlcpy()	2020-06-07 11:42:12 -07:00
dsl_scan.c	Improve scrub maxinflight_bytes math.	2021-06-08 14:50:57 -07:00
dsl_synctask.c	nowait synctask must succeed	2020-09-04 10:29:39 -07:00
dsl_userhold.c	Replace sprintf()->snprintf() and strcpy()->strlcpy()	2020-06-07 11:42:12 -07:00
edonr_zfs.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
fm.c	module/zfs: remove zfs_zevent_console and zfs_zevent_cols	2021-05-27 22:09:19 -07:00
gzip.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
hkdf.c	Encryption patch follow-up	2017-10-11 16:54:48 -04:00
lz4.c	Prefix zfs internal endian checks with _ZFS	2020-07-28 13:02:49 -07:00
lzjb.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
Makefile.in	Distributed Spare (dRAID) Feature	2020-11-13 13:51:51 -08:00
metaslab.c	Optimize small random numbers generation	2021-09-14 12:10:17 -07:00
mmp.c	Optimize small random numbers generation	2021-09-14 12:10:17 -07:00
multilist.c	Optimize small random numbers generation	2021-09-14 12:10:17 -07:00
objlist.c	Implement Redacted Send/Receive	2019-06-19 09:48:12 -07:00
pathname.c	Replace ZFS on Linux references with OpenZFS	2020-10-08 20:10:13 -07:00
range_tree.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
refcount.c	Reference_tracking_enable should be a module param	2021-03-16 14:56:17 -07:00
rrwlock.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
sa.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
sha256.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
skein_zfs.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
spa_boot.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
spa_checkpoint.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
spa_config.c	Cleaning up uio headers	2021-02-20 20:16:50 -08:00
spa_errlog.c	Fix typos in module/zfs/	2019-09-02 17:56:41 -07:00
spa_history.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
spa_log_spacemap.c	Balance parentheses in parameter descriptions	2021-04-14 13:23:07 -07:00
spa_misc.c	Optimize small random numbers generation	2021-09-14 12:10:17 -07:00
spa_stats.c	Remove pool io kstats	2021-06-10 10:50:16 -07:00
spa.c	Optimize small random numbers generation	2021-09-14 12:10:17 -07:00
space_map.c	Optimize small random numbers generation	2021-09-14 12:10:17 -07:00
space_reftree.c	Reduce loaded range tree memory usage	2019-10-09 10:36:03 -07:00
THIRDPARTYLICENSE.cityhash	OpenZFS 8484 - Implement aggregate sum and use for arc counters	2018-06-06 09:35:59 -07:00
THIRDPARTYLICENSE.cityhash.descrip	OpenZFS 8484 - Implement aggregate sum and use for arc counters	2018-06-06 09:35:59 -07:00
txg.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
uberblock.c	MMP interval and fail_intervals in uberblock	2019-03-21 12:47:57 -07:00
unique.c	Reduce loaded range tree memory usage	2019-10-09 10:36:03 -07:00
vdev_cache.c	Replace ASSERTV macro with compiler annotation	2019-12-05 12:37:00 -08:00
vdev_draid_rand.c	Distributed Spare (dRAID) Feature	2020-11-13 13:51:51 -08:00
vdev_draid.c	vdev_draid_min_asize() ignores reserved space	2021-06-15 16:56:42 -07:00
vdev_indirect_births.c	Fixes: #8934 Large kmem_alloc	2019-07-10 15:54:49 -07:00
vdev_indirect_mapping.c	Replace ASSERTV macro with compiler annotation	2019-12-05 12:37:00 -08:00
vdev_indirect.c	Optimize small random numbers generation	2021-09-14 12:10:17 -07:00
vdev_initialize.c	Cancel TRIM / initialize on FAULTED non-writeable vdevs	2021-03-02 10:27:27 -08:00
vdev_label.c	Parallelize vdev_validate	2021-01-26 19:36:51 -08:00
vdev_mirror.c	Optimize small random numbers generation	2021-09-14 12:10:17 -07:00
vdev_missing.c	Distributed Spare (dRAID) Feature	2020-11-13 13:51:51 -08:00
vdev_queue.c	Remove pool io kstats	2021-06-10 10:50:16 -07:00
vdev_raidz_math_aarch64_neon_common.h	FreeBSD: fix the build with Clang 11	2020-08-17 15:40:17 -07:00
vdev_raidz_math_aarch64_neon.c	Linux 5.0 compat: SIMD compatibility	2019-07-12 09:31:20 -07:00
vdev_raidz_math_aarch64_neonx2.c	Linux 5.0 compat: SIMD compatibility	2019-07-12 09:31:20 -07:00
vdev_raidz_math_avx2.c	FreeBSD: fix the build with Clang 11	2020-08-17 15:40:17 -07:00
vdev_raidz_math_avx512bw.c	Refactor ccompile.h to not include system headers	2020-07-25 20:09:50 -07:00
vdev_raidz_math_avx512f.c	FreeBSD: fix the build with Clang 11	2020-08-17 15:40:17 -07:00
vdev_raidz_math_impl.h	Distributed Spare (dRAID) Feature	2020-11-13 13:51:51 -08:00
vdev_raidz_math_powerpc_altivec_common.h	FreeBSD: fix the build with Clang 11	2020-08-17 15:40:17 -07:00
vdev_raidz_math_powerpc_altivec.c	Prefix zfs internal endian checks with _ZFS	2020-07-28 13:02:49 -07:00
vdev_raidz_math_scalar.c	Linux 5.3: Fix switch() fall though compiler errors	2019-08-21 09:29:23 -07:00
vdev_raidz_math_sse2.c	FreeBSD: fix the build with Clang 11	2020-08-17 15:40:17 -07:00
vdev_raidz_math_ssse3.c	Refactor ccompile.h to not include system headers	2020-07-25 20:09:50 -07:00
vdev_raidz_math.c	Reduce fletcher4 and raidz benchmark times	2020-12-06 09:57:20 -08:00
vdev_raidz.c	Fix dRAID sequential resilver silent damage handling	2021-05-27 22:31:56 -07:00
vdev_rebuild.c	Use dsl_scan_setup_check() to setup a scrub	2021-04-14 13:19:49 -07:00
vdev_removal.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
vdev_root.c	Distributed Spare (dRAID) Feature	2020-11-13 13:51:51 -08:00
vdev_trim.c	Cancel TRIM / initialize on FAULTED non-writeable vdevs	2021-03-02 10:27:27 -08:00
vdev.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
zap_leaf.c	Refactor dnode dirty context from dbuf_dirty	2020-02-26 16:09:17 -08:00
zap_micro.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
zap.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
zcp_get.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
zcp_global.c	OpenZFS 8600 - ZFS channel programs - snapshot	2018-02-08 15:29:24 -08:00
zcp_iter.c	Fix typos in module/zfs/	2019-09-02 17:56:41 -07:00
zcp_set.c	Support setting user properties in a channel program	2020-02-14 13:41:42 -08:00
zcp_synctask.c	filesystem_limit/snapshot_limit is incorrectly enforced against root	2020-07-11 17:18:02 -07:00
zcp.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
zfeature.c	Throw const on some strings	2020-10-02 17:44:10 -07:00
zfs_byteswap.c	Mark functions as static	2020-06-18 12:20:38 -07:00
zfs_fm.c	Ratelimit deadman zevents as with delay zevents	2021-04-14 13:19:49 -07:00
zfs_fuid.c	Fix regression in POSIX mode behavior	2021-03-19 22:50:46 -07:00
zfs_ioctl.c	libzfs: On FreeBSD, use MNT_NOWAIT with getfsstat	2021-06-09 13:05:34 -07:00
zfs_log.c	Fix zfs_get_data access to files with wrong generation	2021-03-19 22:53:31 -07:00
zfs_onexit.c	Remove deduplicated send/receive code	2020-04-23 10:06:57 -07:00
zfs_quota.c	File incorrectly zeroed when receiving incremental stream that toggles -L	2020-06-09 10:41:01 -07:00
zfs_ratelimit.c	Change checksum & IO delay ratelimit values	2018-03-04 17:34:51 -08:00
zfs_replay.c	Simplify FreeBSD's locking requirements in zfs_replay.c	2020-01-22 17:55:56 -08:00
zfs_rlock.c	Add a "try" operation for range locks	2020-07-06 11:53:31 -07:00
zfs_sa.c	Extending FreeBSD UIO Struct	2021-01-20 21:27:30 -08:00
zfs_vnops.c	Fix zfs_get_data access to files with wrong generation	2021-03-19 22:53:31 -07:00
zil.c	Optimize small random numbers generation	2021-09-14 12:10:17 -07:00
zio_checksum.c	Mark functions as static	2020-06-18 12:20:38 -07:00
zio_compress.c	Optimize small random numbers generation	2021-09-14 12:10:17 -07:00
zio_inject.c	Optimize small random numbers generation	2021-09-14 12:10:17 -07:00
zio.c	Annotated dprintf as printf-like	2021-06-24 13:12:36 -07:00
zle.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
zrlock.c	Remove dead code	2020-06-18 12:21:18 -07:00
zthr.c	Retain thread name when resuming a zthr	2020-09-03 20:09:52 -07:00
zvol.c	Fix zfs_get_data access to files with wrong generation	2021-03-19 22:53:31 -07:00