diff options
author | Jin Yao <[email protected]> | 2018-02-12 13:32:36 -0700 |
---|---|---|
committer | Arnaldo Carvalho de Melo <[email protected]> | 2018-02-16 14:55:40 -0300 |
commit | 147c508f3004df6e2958f6c8867909531c2a15e2 (patch) | |
tree | 8c9c11681b06d493714e93f092e534ec071152a8 /tools/perf/scripts/python/export-to-postgresql.py | |
parent | 099c1130998fd2234a200b55d69713ec66d88325 (diff) |
perf tools: Use target->per_thread and target->system_wide flags
Mathieu Poirier reports issue in commit ("73c0ca1eee3d perf thread_map:
Enumerate all threads from /proc") that it has negative impact on 'perf
record --per-thread'. It has the effect of creating a kernel event for
each thread in the system for 'perf record --per-thread'.
Mathieu Poirier's patch ("perf util: Do not reuse target->per_thread flag")
can fix this issue by creating a new target->all_threads flag.
This patch is based on Mathieu Poirier's patch but it doesn't use a new
target->all_threads flag. This patch just uses 'target->per_thread &&
target->system_wide' as a condition to check for all threads case.
Signed-off-by: Jin Yao <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Fixes: 73c0ca1eee3d ("perf thread_map: Enumerate all threads from /proc")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Mathieu Poirier <[email protected]>
[Fixed checkpatch warning about line over 80 characters]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions