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OpenZFS 8484 - Implement aggregate sum and use for arc counters

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In pursuit of improving performance on multi-core systems, we should
implements fanned out counters and use them to improve the performance of
some of the arc statistics. These stats are updated extremely frequently,
and can consume a significant amount of CPU time.

Authored by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Approved by: Dan McDonald <danmcd@joyent.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Ported-by: Paul Dagnelie <pcd@delphix.com>

OpenZFS-issue: https://www.illumos.org/issues/8484
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/7028a8b92b7
Issue #3752
Closes #7462
This commit is contained in:
Paul Dagnelie
2017-05-25 11:32:40 -07:00
committed by Brian Behlendorf
parent f0ed6c7448
commit 37fb3e4318
12 changed files with 589 additions and 85 deletions
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lib/libzpool/Makefile.am
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@@ -40,12 +40,14 @@ KERNEL_C = \
zpool_prop.c \
zprop_common.c \
abd.c \
aggsum.c \
arc.c \
blkptr.c \
bplist.c \
bpobj.c \
bptree.c \
bqueue.c \
cityhash.c \
dbuf.c \
dbuf_stats.c \
ddt.c \