Adam D. Moss edd23dba81 Add DB_RF_NOPREFETCH to dbuf_read()s in dnode.c ... Prefetching of dnodes in dbuf_read() can cause significant mutex contention for some workloads and isn't very helpful. This is because we already get 32 dnodes for each block read, and when iterating over a directory we prefetch the dnodes in the directory. Disable this prefetching to prevent the lock contention. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Submitted-by: Adam Moss <c@yotes.com> Submitted-by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: Adam Moss <c@yotes.com> Closes #10877 Closes #10953		2020-10-01 12:21:09 -07:00
..
avl	Links in Source Files	2020-09-03 16:17:18 -07:00
icp	Prefix zfs internal endian checks with _ZFS	2020-07-28 13:02:49 -07:00
lua	FreeBSD: Reduce stack usage of Lua	2020-10-01 12:16:28 -07:00
nvpair	Links in Source Files	2020-09-03 16:17:18 -07:00
os	Fix PREEMPTION=y and BLK_CGROUP=y config on arm64	2020-10-01 12:20:59 -07:00
spl	Cleanup linux module kbuild files	2020-06-10 09:24:15 -07:00
unicode	Prefix zfs internal endian checks with _ZFS	2020-07-28 13:02:49 -07:00
zcommon	Rename acltype=posixacl to acltype=posix	2020-09-18 12:38:00 -07:00
zfs	Add DB_RF_NOPREFETCH to dbuf_read()s in dnode.c	2020-10-01 12:21:09 -07:00
zstd	module/zstd: pass -U__BMI__	2020-08-27 16:07:13 -07:00
.gitignore	Cleanup linux module kbuild files	2020-06-10 09:24:15 -07:00
Kbuild.in	Add zstd support to zfs	2020-08-20 10:30:06 -07:00
Makefile.bsd	module/zstd: pass -U__BMI__	2020-08-27 16:07:13 -07:00
Makefile.in	Add zstd support to zfs	2020-08-20 10:30:06 -07:00