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| author | Quinn Tran <qutran@marvell.com> | 2022-12-21 20:39:28 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-01-11 23:48:25 -0500 |
| commit | 82d8dfd2a238261e06759ee792417dc99b93d60d (patch) | |
| tree | 4e7f369fc8560152a3f4bee1368383a551b295f5 /tools/perf/scripts/python/task-analyzer.py | |
| parent | 430eef03a763e5e76a371ba6d02779ae4a64b6ea (diff) | |
scsi: qla2xxx: edif: Fix performance dip due to lock contention
User experienced performance dip on measuring IOPS while EDIF
enabled. During I/O time, driver uses dma_pool_zalloc() call to allocate a
chunk of memory. This call contains a lock behind the scene which
contribute to lock contention. Save the allocated memory for reuse and
avoid the lock.
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
0 files changed, 0 insertions, 0 deletions