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| author | Namhyung Kim <namhyung@kernel.org> | 2022-03-22 21:57:08 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-04-05 11:24:35 +0300 |
| commit | 16edd9b511a13e7760ed4b92ba4e39bacda5c86f (patch) | |
| tree | 00f84f1cf80f93a9ff061d3a40cab7cfeaa03d9d /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 1ee326196c66583006b0c95356a4b7dc51bf3531 (diff) | |
| download | linux-16edd9b511a13e7760ed4b92ba4e39bacda5c86f.tar.xz | |
locking: Add lock contention tracepoints
This adds two new lock contention tracepoints like below:
* lock:contention_begin
* lock:contention_end
The lock:contention_begin takes a flags argument to classify locks. I
found it useful to identify what kind of locks it's tracing like if
it's spinning or sleeping, reader-writer lock, real-time, and per-cpu.
Move tracepoint definitions into mutex.c so that we can use them
without lockdep.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Link: https://lkml.kernel.org/r/20220322185709.141236-2-namhyung@kernel.org
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions