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e0ce98d57c
mirror_zfs/module/zfs
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Alexander Motin e0ce98d57c
Reduce number of atomic_add() calls in aggsum 
Previous code used 4 atomics to do aggsum_flush_bucket() and 2 more to
re-borrow after the flush.  But since asc_borrowed and asc_delta are
accessed only while holding asc_lock, it makes no any sense to modify
as_lower_bound and as_upper_bound in multiple steps.  Instead of that
the new code uses only 2 atomics in all the cases, one per as_*_bound
variable.  I think even that is overkill, simple atomic store and
load could be used here, since all modifications are done under the
as_lock, but there are no such primitives in ZFS code now.

While there, make borrow code consider previous borrow value, so that
on mixed request patterns reduce chance of needing to borrow again if
much larger request follows tiny one that needed borrow.

Also reduce as_numbuckets from uint64_t to u_int.  It makes no sense
to use so large division operation on every aggsum_add().

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Paul Dagnelie <pcd@delphix.com>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored-By: iXsystems, Inc.
Closes #9930
2020-02-06 13:21:06 -08:00
..
aggsum.c Reduce number of atomic_add() calls in aggsum 2020-02-06 13:21:06 -08:00
arc.c Replace ASSERTV macro with compiler annotation 2019-12-05 12:37:00 -08:00
blkptr.c Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -07:00
bplist.c Fast Clone Deletion 2019-07-26 10:54:14 -07:00
bpobj.c Add subcommand to wait for background zfs activity to complete 2019-09-13 18:09:06 -07:00
bptree.c Implement Redacted Send/Receive 2019-06-19 09:48:12 -07:00
bqueue.c Implement Redacted Send/Receive 2019-06-19 09:48:12 -07:00
btree.c Replace ASSERTV macro with compiler annotation 2019-12-05 12:37:00 -08:00
cityhash.c OpenZFS 8484 - Implement aggregate sum and use for arc counters 2018-06-06 09:35:59 -07:00
dataset_kstats.c Fix panic on DilOS with kstat per dataset statistics 2019-09-03 12:12:31 -07:00
dbuf_stats.c Make module tunables cross platform 2019-09-05 14:49:49 -07:00
dbuf.c Few microoptimizations to dbuf layer 2020-02-05 11:08:44 -08:00
ddt_zap.c fat zap should prefetch when iterating 2019-06-12 13:13:09 -07:00
ddt.c Reduce loaded range tree memory usage 2019-10-09 10:36:03 -07:00
dmu_diff.c Mark write_record static 2019-12-03 09:51:44 -08:00
dmu_object.c Make module tunables cross platform 2019-09-05 14:49:49 -07:00
dmu_objset.c Convert dbuf dirty record record list to a list_t 2020-02-05 11:07:19 -08:00
dmu_recv.c async zvol minor node creation interferes with receive 2020-02-03 09:33:14 -08:00
dmu_redact.c Move objnode handling to common code 2019-09-12 13:31:09 -07:00
dmu_send.c dmu_send: redacted: fix memory leak on invalid redaction/from bookmark 2020-01-23 09:34:31 -08:00
dmu_traverse.c Make module tunables cross platform 2019-09-05 14:49:49 -07:00
dmu_tx.c Enable use of DTRACE_PROBE* macros in "spl" module 2019-11-01 13:13:43 -07:00
dmu_zfetch.c Make module tunables cross platform 2019-09-05 14:49:49 -07:00
dmu.c Convert dbuf dirty record record list to a list_t 2020-02-05 11:07:19 -08:00
dnode_sync.c Convert dbuf dirty record record list to a list_t 2020-02-05 11:07:19 -08:00
dnode.c Convert dbuf dirty record record list to a list_t 2020-02-05 11:07:19 -08:00
dsl_bookmark.c dsl_bookmark_create_check: fix NULL pointer deref if dbca_errors == NULL 2020-01-23 21:13:42 -08:00
dsl_crypt.c async zvol minor node creation interferes with receive 2020-02-03 09:33:14 -08:00
dsl_dataset.c async zvol minor node creation interferes with receive 2020-02-03 09:33:14 -08:00
dsl_deadlist.c Reduce loaded range tree memory usage 2019-10-09 10:36:03 -07:00
dsl_deleg.c Reduce loaded range tree memory usage 2019-10-09 10:36:03 -07:00
dsl_destroy.c Replace ASSERTV macro with compiler annotation 2019-12-05 12:37:00 -08:00
dsl_dir.c Add FreeBSD jail support hooks 2019-12-11 11:58:37 -08:00
dsl_pool.c Eliminate Linux specific inode usage from common code 2019-12-11 11:53:57 -08:00
dsl_prop.c Support inheriting properties in channel programs 2020-01-22 17:03:17 -08:00
dsl_scan.c Prevent unnecessary resilver restarts 2019-11-27 10:15:01 -08:00
dsl_synctask.c Fix typos in module/zfs/ 2019-09-02 17:56:41 -07:00
dsl_userhold.c Fix strdup conflict on other platforms 2019-10-10 09:47:06 -07:00
edonr_zfs.c DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
fm.c Add zfs_file_* interface, remove vnodes 2019-11-21 09:32:57 -08:00
gzip.c OpenZFS restructuring - move platform specific sources 2019-09-06 11:26:26 -07:00
hkdf.c Encryption patch follow-up 2017-10-11 16:54:48 -04:00
lz4.c Enable clang to use intrinsics for lz4 2019-10-01 13:17:32 -07:00
lzjb.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
Makefile.in Add AltiVec RAID-Z 2020-01-23 11:01:24 -08:00
metaslab.c Replace ASSERTV macro with compiler annotation 2019-12-05 12:37:00 -08:00
mmp.c Move linux specific mmp module_param_call handler to platform code 2019-10-16 18:37:31 -07:00
multilist.c Enable use of DTRACE_PROBE* macros in "spl" module 2019-11-01 13:13:43 -07:00
objlist.c Implement Redacted Send/Receive 2019-06-19 09:48:12 -07:00
pathname.c Disable unused pathname::pn_path* (unneeded in Linux) 2019-07-15 13:57:56 -07:00
range_tree.c Function name and comment updates 2019-10-11 10:13:21 -07:00
refcount.c Prevent race in blkptr_verify against device removal 2019-08-13 21:24:43 -06:00
rrwlock.c Enable use of DTRACE_PROBE* macros in "spl" module 2019-11-01 13:13:43 -07:00
sa.c Replace ASSERTV macro with compiler annotation 2019-12-05 12:37:00 -08:00
sha256.c OpenZFS restructuring - move platform specific sources 2019-09-06 11:26:26 -07:00
skein_zfs.c DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
spa_boot.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
spa_checkpoint.c Add subcommand to wait for background zfs activity to complete 2019-09-13 18:09:06 -07:00
spa_config.c Add zfs_file_* interface, remove vnodes 2019-11-21 09:32:57 -08:00
spa_errlog.c Fix typos in module/zfs/ 2019-09-02 17:56:41 -07:00
spa_history.c Fix strdup conflict on other platforms 2019-10-10 09:47:06 -07:00
spa_log_spacemap.c Make module tunables cross platform 2019-09-05 14:49:49 -07:00
spa_misc.c Refactor deadman set failmode to be cross platform 2019-12-05 12:40:45 -08:00
spa.c async zvol minor node creation interferes with receive 2020-02-03 09:33:14 -08:00
space_map.c Reduce loaded range tree memory usage 2019-10-09 10:36:03 -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 Replace ASSERTV macro with compiler annotation 2019-12-05 12:37:00 -08:00
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_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 Replace ASSERTV macro with compiler annotation 2019-12-05 12:37:00 -08:00
vdev_initialize.c Include prototypes for vdev_initialize 2019-10-31 10:09:01 -07:00
vdev_label.c Add zfs_file_* interface, remove vnodes 2019-11-21 09:32:57 -08:00
vdev_mirror.c Avoid some crashes when importing a pool with corrupt metadata 2019-12-26 10:57:05 -08:00
vdev_missing.c Update vdev_ops_t from illumos 2019-06-20 18:29:02 -07:00
vdev_queue.c Reduce loaded range tree memory usage 2019-10-09 10:36:03 -07:00
vdev_raidz_math_aarch64_neon_common.h Minor performance fix for NEON RAID-Z 2019-12-17 19:34:52 -08:00
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 OpenZFS restructuring - move platform specific headers 2019-09-05 09:34:54 -07:00
vdev_raidz_math_avx512bw.c OpenZFS restructuring - move platform specific headers 2019-09-05 09:34:54 -07:00
vdev_raidz_math_avx512f.c Make clang happy with vdev_raidz_ code 2019-10-10 09:45:37 -07:00
vdev_raidz_math_impl.h Fix const-correctness in raidz math 2020-02-03 10:52:41 -08:00
vdev_raidz_math_powerpc_altivec_common.h Add AltiVec RAID-Z 2020-01-23 11:01:24 -08:00
vdev_raidz_math_powerpc_altivec.c Add AltiVec RAID-Z 2020-01-23 11:01:24 -08:00
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 Make clang happy with vdev_raidz_ code 2019-10-10 09:45:37 -07:00
vdev_raidz_math_ssse3.c OpenZFS restructuring - move platform specific headers 2019-09-05 09:34:54 -07:00
vdev_raidz_math.c Add AltiVec RAID-Z 2020-01-23 11:01:24 -08:00
vdev_raidz.c Reduce loaded range tree memory usage 2019-10-09 10:36:03 -07:00
vdev_removal.c Cancel initialize and TRIM before vdev_metaslab_fini() 2019-12-26 10:50:23 -08:00
vdev_root.c Update vdev_ops_t from illumos 2019-06-20 18:29:02 -07:00
vdev_trim.c Reduce loaded range tree memory usage 2019-10-09 10:36:03 -07:00
vdev.c Replace ASSERTV macro with compiler annotation 2019-12-05 12:37:00 -08:00
zap_leaf.c Off-by-one in zap_leaf_array_create() 2019-01-18 09:58:46 -08:00
zap_micro.c Reduce loaded range tree memory usage 2019-10-09 10:36:03 -07:00
zap.c Make module tunables cross platform 2019-09-05 14:49:49 -07:00
zcp_get.c Relocate common quota functions to shared code 2019-12-11 12:12:08 -08:00
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_synctask.c async zvol minor node creation interferes with receive 2020-02-03 09:33:14 -08:00
zcp.c async zvol minor node creation interferes with receive 2020-02-03 09:33:14 -08:00
zfeature.c Replace ASSERTV macro with compiler annotation 2019-12-05 12:37:00 -08:00
zfs_byteswap.c Fix typos in module/zfs/ 2019-09-02 17:56:41 -07:00
zfs_fm.c Add zpool status -s (slow I/Os) and -p (parseable) 2018-11-08 16:47:24 -08:00
zfs_fuid.c Relocate common quota functions to shared code 2019-12-11 12:12:08 -08:00
zfs_ioctl.c async zvol minor node creation interferes with receive 2020-02-03 09:33:14 -08:00
zfs_log.c Fix zfs_xattr_owner_unlinked on FreeBSD and comment 2019-12-16 09:49:05 -08:00
zfs_onexit.c Move zfs_onexit_fd_hold to platform code 2019-10-13 19:19:39 -07:00
zfs_quota.c Relocate common quota functions to shared code 2019-12-11 12:12:08 -08:00
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 Move platform specific parts of zfs_znode.h to platform code 2019-11-06 10:54:25 -08:00
zfs_sa.c Add inode accessors to common code 2019-10-02 09:15:12 -07:00
zil.c Improve logging of 128KB writes 2019-11-11 09:27:59 -08:00
zio_checksum.c Disable EDONR on FreeBSD 2019-12-05 13:10:29 -08:00
zio_compress.c zio_decompress_data always ASSERTs successful decompression 2019-12-10 15:51:58 -08:00
zio_inject.c Replace ASSERTV macro with compiler annotation 2019-12-05 12:37:00 -08:00
zio.c Re-consolidate zio_delay_interrupt 2020-01-21 15:04:13 -08:00
zle.c Fix zle_decompress out of bound access 2018-02-09 10:08:05 -08:00
zrlock.c Enable use of DTRACE_PROBE* macros in "spl" module 2019-11-01 13:13:43 -07:00
zthr.c Fast Clone Deletion 2019-07-26 10:54:14 -07:00
zvol.c async zvol minor node creation interferes with receive 2020-02-03 09:33:14 -08:00