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| author | Nicholas Piggin <npiggin@gmail.com> | 2022-11-26 19:59:30 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-12-02 17:48:50 +1100 |
| commit | 39dfc73596b48bb50cf7e4f3f54e38427dda5b4e (patch) | |
| tree | fd6c5931bfa2cf536c162c74bd3df52728c862b1 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | cc79701114154efe79663ba47d9e51aad2ed3c78 (diff) | |
powerpc/qspinlock: allow indefinite spinning on a preempted owner
Provide an option that holds off queueing indefinitely while the lock
owner is preempted. This could reduce queueing latencies for very
overcommitted vcpu situations.
This is disabled by default.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221126095932.1234527-16-npiggin@gmail.com
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions