svn commit: r286763 - in head/sys: cddl/contrib/opensolaris/uts/common cddl/contrib/opensolaris/uts/common/fs/zfs cddl/contrib/opensolaris/uts/common/fs/zfs/sys conf

[Andriy Gapon]

On 14/08/2015 12:31, Alexander Motin wrote:
> Author: mav
> Date: Fri Aug 14 09:31:07 2015
> New Revision: 286763
> URL: https://svnweb.freebsd.org/changeset/base/286763
> 
> Log:
>   MFV r277431: 5497 lock contention on arcs_mtx
>   
>   Reviewed by: George Wilson <george.wilson at delphix.com>
>   Reviewed by: Matthew Ahrens <mahrens at delphix.com>
>   Reviewed by: Richard Elling <richard.elling at richardelling.com>
>   Approved by: Dan McDonald <danmcd at omniti.com>
>   Author: Prakash Surya <prakash.surya at delphix.com>
>   
>   illumos/illumos-gate at 244781f10dcd82684fd8163c016540667842f203
>   
>   This patch attempts to reduce lock contention on the current arc_state_t
>   mutexes. These mutexes are used liberally to protect the number of LRU
>   lists within the ARC (e.g. ARC_mru, ARC_mfu, etc). The granularity at
>   which these locks are acquired has been shown to greatly affect the
>   performance of highly concurrent, cached workloads.
> 
> Added:
>   head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/multilist.c   (contents, props changed)
>   head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/multilist.h   (contents, props changed)
> Modified:
>   head/sys/cddl/contrib/opensolaris/uts/common/Makefile.files
>   head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
>   head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_pool.c
>   head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/arc.h
>   head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio_inject.c
>   head/sys/conf/files
> Directory Properties:
>   head/sys/cddl/contrib/opensolaris/   (props changed)
> 
> Modified: head/sys/cddl/contrib/opensolaris/uts/common/Makefile.files
> ==============================================================================
> --- head/sys/cddl/contrib/opensolaris/uts/common/Makefile.files	Fri Aug 14 09:25:54 2015	(r286762)
> +++ head/sys/cddl/contrib/opensolaris/uts/common/Makefile.files	Fri Aug 14 09:31:07 2015	(r286763)
> @@ -68,6 +68,7 @@ ZFS_COMMON_OBJS +=		\
>  	lz4.o			\
>  	lzjb.o			\
>  	metaslab.o		\
> +	multilist.o		\
>  	range_tree.o		\
>  	refcount.o		\
>  	rrwlock.o		\

Thank you!
The new file also has to be added to sys/conf/files for those who
compile ZFS into a kernel.

-- 
Andriy Gapon