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| author | mav <mav@FreeBSD.org> | 2015-08-14 09:31:07 +0000 |
|---|---|---|
| committer | mav <mav@FreeBSD.org> | 2015-08-14 09:31:07 +0000 |
| commit | 71fb6300f46663fa4b8901a827f1fb0b7871ca9a (patch) | |
| tree | f4e9c51f8e61a64bf12ebfb73a9bf3f1aabc493c /sys/dev/uart/uart_dev_msm.c | |
| parent | 6c172b2474f5681c54a01b849c7baab279d642b4 (diff) | |
| download | FreeBSD-src-71fb6300f46663fa4b8901a827f1fb0b7871ca9a.zip FreeBSD-src-71fb6300f46663fa4b8901a827f1fb0b7871ca9a.tar.gz | |
MFV r277431: 5497 lock contention on arcs_mtx
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Richard Elling <richard.elling@richardelling.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Author: Prakash Surya <prakash.surya@delphix.com>
illumos/illumos-gate@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.
Diffstat (limited to 'sys/dev/uart/uart_dev_msm.c')
0 files changed, 0 insertions, 0 deletions
