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
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avl	Fix uninitialized variable in avl_add()	2016-07-25 14:21:34 -07:00
icp	[icp] fpu and asm cleanup for linux	2017-03-07 12:59:31 -08:00
nvpair	OpenZFS 7812 - Remove gender specific language	2017-02-24 11:07:04 -08:00
unicode	codebase style improvements for OpenZFS 6459 port	2017-01-22 13:25:40 -08:00
zcommon	More ashift improvements	2017-05-03 09:31:05 -07:00
zfs	Disable write merging on ZVOLs	2017-05-04 17:59:52 -04:00
zpios	codebase style improvements for OpenZFS 6459 port	2017-01-22 13:25:40 -08:00
.gitignore	module/.gitignore: Add *.dwo (#4580)	2016-05-02 09:07:04 -07:00
Makefile.in	GZIP compression offloading with QAT accelerator	2017-03-22 17:58:47 -07:00