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authorTomas Henzl <thenzl@redhat.com>2024-09-03 16:47:29 +0200
committerMartin K. Petersen <martin.petersen@oracle.com>2024-09-13 02:34:44 +0200
commit24d7071d964574cca41fa72a10c211221af37aec (patch)
tree503509b7ea75e55691fbd85915d3fef9481689ca /security
parentscsi: ufs: qcom: Update MODE_MAX cfg_bw value (diff)
downloadlinux-24d7071d964574cca41fa72a10c211221af37aec.tar.xz
linux-24d7071d964574cca41fa72a10c211221af37aec.zip
scsi: mpi3mr: A performance fix
Commit 0c52310f2600 ("hrtimer: Ignore slack time for RT tasks in schedule_hrtimeout_range()") effectivelly shortens a sleep in a polling function in the driver. That is causing a performance regression as the new value of just 2us is too low, in certain tests the perf drop is ~30%. Fix this by adjusting the sleep to 20us (close to the previous value). Reported-by: Jan Jurca <jjurca@redhat.com> Signed-off-by: Tomas Henzl <thenzl@redhat.com> Acked-by: Sumit Saxena <sumit.saxena@broadcom.com> Link: https://lore.kernel.org/r/20240903144729.37218-1-thenzl@redhat.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'security')
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