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| author | Mike Marciniszyn <[email protected]> | 2018-05-15 18:31:24 -0700 |
|---|---|---|
| committer | Jason Gunthorpe <[email protected]> | 2018-05-24 09:39:25 -0600 |
| commit | 3ce459cd684b7f18ca79838e62310ffdc930920b (patch) | |
| tree | debe30b90ad8f1220da686232988446ddc59d471 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | 5938d94cf0380bca9e6fbb910c010f4483906c11 (diff) | |
IB/{rdmavt,hfi1}: Change hrtimer add to use pinned version
Given we are dealing with nano-second level timers, when the timer
pops, ensure it happens on the CPU which caused the timer to be set
in the first place. This avoids excessive jitter from the desired
expiration time by avoiding the cost of switching our context to
another CPU that is cache cold for this given timer.
Reviewed-by: Kaike Wan <[email protected]>
Signed-off-by: Mike Marciniszyn <[email protected]>
Signed-off-by: Dennis Dalessandro <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions