RageLtMan 5731140eaf Disable write merging on ZVOLs ...

The current ZVOL implementation does not explicitly set merge
options on ZVOL device queues, which results in the default merge
behavior.

Explicitly set QUEUE_FLAG_NOMERGES on ZVOL queues allowing the
ZIO pipeline to do its work.

Initial benchmarks (tiotest with no O_DIRECT) show random write
performance going up almost 3X on 8K ZVOLs, even after significant
rewrites of the logical space allocation.

Reviewed-by: Richard Yao <ryao@gentoo.org>
Reviewed-by: Chunwei Chen <david.chen@osnexus.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: RageLtMan <rageltman@sempervictus>
Issue #5902

2017-05-04 17:59:52 -04:00

..

abd.c

minor improvement to abd_free_pages()

2017-05-02 10:06:18 -07:00

arc.c

Allow scaling of arc in proportion to pagecache

2017-05-02 15:50:49 -04:00

blkptr.c

DLPX-44812 integrate EP-220 large memory scalability

2016-11-29 14:34:27 -08:00

bplist.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

bpobj.c

panic in bpobj_space(): null pointer dereference

2017-02-09 10:19:12 -08:00

bptree.c

OpenZFS 7082 - bptree_iterate() passes wrong args to zfs_dbgmsg()

2017-01-17 14:49:24 -08:00

bqueue.c

Fix coverity defects: CID 147565-147567

2016-10-07 13:19:43 -07:00

dbuf_stats.c

OpenZFS 6950 - ARC should cache compressed data

2016-09-13 09:58:33 -07:00

dbuf.c

OpenZFS 7252 - compressed zfs send / receive

2017-04-26 12:31:43 -07:00

ddt_zap.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

ddt.c

Cache ddt_get_dedup_dspace() value if there was no ddt changes

2016-12-02 16:59:35 -07:00

dmu_diff.c

OpenZFS 6950 - ARC should cache compressed data

2016-09-13 09:58:33 -07:00

dmu_object.c

Clean up by-dnode code in dmu_tx.c

2017-02-24 13:34:26 -08:00

dmu_objset.c

OpenZFS 7968 - multi-threaded spa_sync()

2017-03-20 18:36:00 -07:00

dmu_send.c

OpenZFS 7252 - compressed zfs send / receive

2017-04-26 12:31:43 -07:00

dmu_traverse.c

Add TASKQID_INVALID

2016-11-02 12:14:45 -07:00

dmu_tx.c

OpenZFS 7801 - add more by-dnode routines (lint)

2017-03-20 12:33:17 -07:00

dmu_zfetch.c

Use cstyle -cpP in make cstyle check

2016-12-12 10:46:26 -08:00

dmu.c

OpenZFS 7252 - compressed zfs send / receive

2017-04-26 12:31:43 -07:00

dnode_sync.c

OpenZFS 7968 - multi-threaded spa_sync()

2017-03-20 18:36:00 -07:00

dnode.c

OpenZFS 7968 - multi-threaded spa_sync()

2017-03-20 18:36:00 -07:00

dsl_bookmark.c

OpenZFS 1300 - filename normalization doesn't work for removes

2017-02-02 14:13:41 -08:00

dsl_dataset.c

OpenZFS 7968 - multi-threaded spa_sync()

2017-03-20 18:36:00 -07:00

dsl_deadlist.c

panic in bpobj_space(): null pointer dereference

2017-02-09 10:19:12 -08:00

dsl_deleg.c

Performance optimization of AVL tree comparator functions

2016-08-31 14:35:34 -07:00

dsl_destroy.c

OpenZFS 7254 - ztest failed assertion in ztest_dataset_dirobj_verify: dirobjs + 1 == usedobjs

2017-01-27 11:43:42 -08:00

dsl_dir.c

OpenZFS 7793 - ztest fails assertion in dmu_tx_willuse_space

2017-03-07 09:51:59 -08:00

dsl_pool.c

OpenZFS 8026 - retire zfs_throttle_delay and zfs_throttle_resolution

2017-04-14 11:11:20 -07:00

dsl_prop.c

Fix dsl_props_set_sync_impl to work with nested nvlist

2016-12-20 18:46:59 -08:00

dsl_scan.c

OpenZFS 7254 - ztest failed assertion in ztest_dataset_dirobj_verify: dirobjs + 1 == usedobjs

2017-01-27 11:43:42 -08:00

dsl_synctask.c

Illumos 4951 - ZFS administrative commands should use reserved space

2015-05-04 09:41:10 -07:00

dsl_userhold.c

OpenZFS 6314 - buffer overflow in dsl_dataset_name

2016-06-28 13:47:03 -07:00

edonr_zfs.c

DLPX-44812 integrate EP-220 large memory scalability

2016-11-29 14:34:27 -08:00

fm.c

Use cstyle -cpP in make cstyle check

2016-12-12 10:46:26 -08:00

gzip.c

GZIP compression offloading with QAT accelerator

2017-03-22 17:58:47 -07:00

lz4.c

OpenZFS 7252 - compressed zfs send / receive

2017-04-26 12:31:43 -07:00

lzjb.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

Makefile.in

GZIP compression offloading with QAT accelerator

2017-03-22 17:58:47 -07:00

metaslab.c

OpenZFS 8023 - Panic destroying a metaslab deferred range tree

2017-04-09 16:12:35 -07:00

multilist.c

OpenZFS 7968 - multi-threaded spa_sync()

2017-03-20 18:36:00 -07:00

pathname.c

Add pn_alloc()/pn_free() functions

2016-04-21 09:49:25 -07:00

policy.c

codebase style improvements for OpenZFS 6459 port

2017-01-22 13:25:40 -08:00

qat_compress.c

Change U16 to U32 due to atomic_inc_32_nv

2017-04-25 17:41:58 -07:00

qat_compress.h

GZIP compression offloading with QAT accelerator

2017-03-22 17:58:47 -07:00

range_tree.c

Performance optimization of AVL tree comparator functions

2016-08-31 14:35:34 -07:00

refcount.c

Linux 4.11 compat: avoid refcount_t name conflict

2017-02-28 16:10:18 -08:00

rrwlock.c

Fix spelling

2017-01-03 11:31:18 -06:00

sa.c

OpenZFS 8061 - sa_find_idx_tab can be declared more type-safely

2017-04-14 11:11:28 -07:00

sha256.c

DLPX-44812 integrate EP-220 large memory scalability

2016-11-29 14:34:27 -08:00

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_config.c

Fix spelling

2017-01-03 11:31:18 -06:00

spa_errlog.c

Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t

2014-08-06 14:48:41 -07:00

spa_history.c

Fix indefinite article

2016-08-11 11:23:49 -07:00

spa_misc.c

Fix size inflation in spa_get_worst_case_asize()

2017-04-10 15:28:21 -07:00

spa_stats.c

Fix spelling

2017-01-03 11:31:18 -06:00

spa.c

OpenZFS 5120 - zfs should allow large block/gzip/raidz boot pool (loader project)

2017-04-13 09:40:00 -07:00

space_map.c

OpenZFS 8023 - Panic destroying a metaslab deferred range tree

2017-04-09 16:12:35 -07:00

space_reftree.c

OpenZFS 6328 - Fix cstyle errors in zfs codebase

2017-01-12 09:42:11 -08:00

trace.c

OpenZFS 6531 - Provide mechanism to artificially limit disk performance

2016-05-26 10:11:51 -07:00

txg.c

Refactor txg history kstat

2016-12-02 16:57:49 -07:00

uberblock.c

Illumos 5347 - idle pool may run itself out of space

2015-07-14 10:35:21 -07:00

unique.c

Performance optimization of AVL tree comparator functions

2016-08-31 14:35:34 -07:00

vdev_cache.c

Fix wrong offset args in vdev_cache_write

2017-03-28 11:06:22 -07:00

vdev_disk.c

OpenZFS 7448 - ZFS doesn't notice when disk vdevs have no write cache

2017-02-04 09:23:50 -08:00

vdev_file.c

Use a dedicated taskq for vdev_file

2016-12-21 10:47:15 -08:00

vdev_label.c

Write label 2,3 uberblocks when vdev expands

2017-05-02 13:55:24 -07:00

vdev_mirror.c

codebase style improvements for OpenZFS 6459 port

2017-01-22 13:25:40 -08:00

vdev_missing.c

Illumos #5244 - zio pipeline callers should explicitly invoke next stage

2015-04-30 15:07:47 -07:00

vdev_queue.c

Increase zfs_vdev_async_write_min_active to 2

2017-04-14 14:03:44 -07:00

vdev_raidz_math_aarch64_neon_common.h

ABD raidz NEON support

2016-11-29 14:34:33 -08:00

vdev_raidz_math_aarch64_neon.c

codebase style improvements for OpenZFS 6459 port

2017-01-22 13:25:40 -08:00

vdev_raidz_math_aarch64_neonx2.c

ABD raidz NEON support

2016-11-29 14:34:33 -08:00

vdev_raidz_math_avx2.c

ABD raidz avx512f support

2016-11-29 14:34:33 -08:00

vdev_raidz_math_avx512bw.c

ABD: Adapt avx512bw raidz assembly

2016-12-15 17:31:33 -08:00

vdev_raidz_math_avx512f.c

Use cstyle -cpP in make cstyle check

2016-12-12 10:46:26 -08:00

vdev_raidz_math_impl.h

codebase style improvements for OpenZFS 6459 port

2017-01-22 13:25:40 -08:00

vdev_raidz_math_scalar.c

ABD Vectorized raidz

2016-11-29 14:34:33 -08:00

vdev_raidz_math_sse2.c

ABD raidz avx512f support

2016-11-29 14:34:33 -08:00

vdev_raidz_math_ssse3.c

codebase style improvements for OpenZFS 6459 port

2017-01-22 13:25:40 -08:00

vdev_raidz_math.c

codebase style improvements for OpenZFS 6459 port

2017-01-22 13:25:40 -08:00

vdev_raidz.c

Remove dependency on linear ABD

2017-03-29 12:24:51 -07:00

vdev_root.c

Illumos #3598

2013-10-31 14:58:04 -07:00

vdev.c

Write label 2,3 uberblocks when vdev expands

2017-05-02 13:55:24 -07:00

zap_leaf.c

OpenZFS 1300 - filename normalization doesn't work for removes

2017-02-02 14:13:41 -08:00

zap_micro.c

OpenZFS 7793 - ztest fails assertion in dmu_tx_willuse_space

2017-03-07 09:51:59 -08:00

zap.c

OpenZFS 7793 - ztest fails assertion in dmu_tx_willuse_space

2017-03-07 09:51:59 -08:00

zfeature_common.c

OpenZFS 2932 - support crash dumps to raidz, etc. pools

2017-04-10 10:24:17 -07:00

zfeature.c

OpenZFS 6328 - Fix cstyle errors in zfs codebase

2017-01-12 09:42:11 -08:00

zfs_acl.c

Rename zfs_sb_t -> zfsvfs_t

2017-03-10 09:51:33 -08:00

zfs_byteswap.c

Add linux kernel module support

2010-08-31 13:41:58 -07:00

zfs_ctldir.c

Restructure mount option handling

2017-03-10 09:51:41 -08:00

zfs_debug.c

OpenZFS 7503 - zfs-test should tail ::zfs_dbgmsg on test failure

2017-04-12 13:36:48 -07:00

zfs_dir.c

Rename zfs_sb_t -> zfsvfs_t

2017-03-10 09:51:33 -08:00

zfs_fm.c

Skip rate limiting events in zfs_ereport_post

2017-04-11 18:37:45 -07:00

zfs_fuid.c

Rename zfs_sb_t -> zfsvfs_t

2017-03-10 09:51:33 -08:00

zfs_ioctl.c

OpenZFS 6101 - attempt to lzc_create() a filesystem under a volume results in a panic

2017-04-14 11:11:28 -07:00

zfs_log.c

OpenZFS 6328 - Fix cstyle errors in zfs codebase

2017-01-12 09:42:11 -08:00

zfs_onexit.c

zfsdev_getminor() should check for invalid file handles

2015-06-22 17:02:13 -07:00

zfs_replay.c

Rename zfs_sb_t -> zfsvfs_t

2017-03-10 09:51:33 -08:00

zfs_rlock.c

Fix spelling

2017-01-03 11:31:18 -06:00

zfs_sa.c

Rename zfs_sb_t -> zfsvfs_t

2017-03-10 09:51:33 -08:00

zfs_vfsops.c

Linux 4.12 compat: super_setup_bdi_name()

2017-05-02 09:46:18 -07:00

zfs_vnops.c

Fix lseek result when dnode is dirty

2017-04-24 09:38:31 -07:00

zfs_znode.c

Retry zfs_znode_alloc() in zfs_mknode()

2017-03-23 18:26:50 -07:00

zil.c

OpenZFS 3821 - Race in rollback, zil close, and zil flush

2017-03-23 18:20:58 -07:00

zio_checksum.c

Remove dependency on linear ABD

2017-03-29 12:24:51 -07:00

zio_compress.c

DLPX-44812 integrate EP-220 large memory scalability

2016-11-29 14:34:27 -08:00

zio_inject.c

Compile zio.h and zio_impl.h mutual include

2016-12-01 16:36:25 -07:00

zio.c

Guarantee PAGESIZE alignment for large zio buffers

2017-05-02 10:04:30 -07:00

zle.c

Update core ZFS code from build 121 to build 141.

2010-05-28 13:45:14 -07:00

zpl_ctldir.c

Linux 4.11 compat: iops.getattr and friends

2017-03-20 17:51:16 -07:00

zpl_export.c

Use cstyle -cpP in make cstyle check

2016-12-12 10:46:26 -08:00

zpl_file.c

Rename zfs_sb_t -> zfsvfs_t

2017-03-10 09:51:33 -08:00

zpl_inode.c

Linux 4.11 compat: iops.getattr and friends

2017-03-20 17:51:16 -07:00

zpl_super.c

Restructure mount option handling

2017-03-10 09:51:41 -08:00

zpl_xattr.c

Rename zfs_sb_t -> zfsvfs_t

2017-03-10 09:51:33 -08:00

zrlock.c

OpenZFS 3746 - ZRLs are racy

2017-01-23 10:35:58 -08:00

zvol.c

Disable write merging on ZVOLs

2017-05-04 17:59:52 -04:00