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| author |   Robert Elliott <elliott@hp.com> | 2015-01-23 16:43:41 -0600 |
|---|---|---|
| committer |   James Bottomley <JBottomley@Parallels.com> | 2015-02-02 09:57:41 -0800 |
| commit | 33811026a0a4208dd5725183d37fc92d5e88b0a2 (patch) | |
| tree | 3ee9c60da0de30a40ea02be9db13b5c75fcb0ea4 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | hpsa: fix race between abort handler and main i/o path (diff) | |
| download | wireguard-linux-33811026a0a4208dd5725183d37fc92d5e88b0a2.tar.xz wireguard-linux-33811026a0a4208dd5725183d37fc92d5e88b0a2.zip | |
hpsa: optimize cmd_alloc function by remembering last allocation
Empirically, this improves performance slightly (~2% max IOPS) by
allowing cmd_alloc to remember where it left off searching for
free commands between calls instead of always starting its search
at command 0.
Reviewed-by: Scott Teel <scott.teel@pmcs.com>
Signed-off-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Don Brace <don.brace@pmcs.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions