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| author |   Shaohua Li <shli@fb.com> | 2016-11-18 09:44:08 -0800 |
|---|---|---|
| committer | Shaohua Li <shli@fb.com> | 2016-11-18 09:47:57 -0800 |
| commit | 504634f60f463e73e7d58c6810a04437da942dba (patch) | |
| tree | abdc28fb557c2158f005a6f271c60c983562c43e /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | md/raid1, raid10: add blktrace records when IO is delayed (diff) | |
| download | linux-dev-504634f60f463e73e7d58c6810a04437da942dba.tar.xz linux-dev-504634f60f463e73e7d58c6810a04437da942dba.zip | |
md: add blktrace event for writes to superblock
superblock write is an expensive operation. With raid5-cache, it can be called
regularly. Tracing to help performance debug.
Signed-off-by: Shaohua Li <shli@fb.com>
Cc: NeilBrown <neilb@suse.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions