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| author | Mike Christie <michael.christie@oracle.com> | 2025-04-23 22:26:32 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2025-04-28 21:47:55 -0400 |
| commit | 9cf2317b795d6cde0fccb8744b5a080a9586020e (patch) | |
| tree | 3081c6a4f985736babdceda2ff8596ab000d5752 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 0af2f6be1b4281385b618cb86ad946eded089ac8 (diff) | |
scsi: target: Move I/O path stats to per CPU
The atomic use in the main I/O path is causing perf issues when using
higher performance backend devices and multiple queues. This moves the
stats to per CPU. Combined with the next patch that moves the
non_ordered/delayed_cmd_count to per CPU, IOPS by up to 33% for 8K IOS
when using 4 or more queues.
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Link: https://lore.kernel.org/r/20250424032741.16216-2-michael.christie@oracle.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions