diff options
| author | Thomas Gleixner <[email protected]> | 2021-09-28 14:24:27 +0200 |
|---|---|---|
| committer | Peter Zijlstra <[email protected]> | 2021-10-05 15:52:12 +0200 |
| commit | 539fbb5be0da56ffa1434b4f56521a0522bd1d61 (patch) | |
| tree | 7721f47f5779786d4543a9419dcaf3bb110be274 /scripts/gdb/linux/proc.py | |
| parent | 691925f3ddccea832cf2d162dc277d2623a816e3 (diff) | |
sched: Disable TTWU_QUEUE on RT
The queued remote wakeup mechanism has turned out to be suboptimal for RT
enabled kernels. The maximum latencies go up by a factor of > 5x in certain
scenarious.
This is caused by either long wake lists or by a large number of TTWU IPIs
which are processed back to back.
Disable it for RT.
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Diffstat (limited to 'scripts/gdb/linux/proc.py')
0 files changed, 0 insertions, 0 deletions