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author | Michael Petlan <[email protected]> | 2020-03-11 14:28:36 +0100 |
---|---|---|
committer | Arnaldo Carvalho de Melo <[email protected]> | 2020-03-11 11:20:24 -0300 |
commit | 67439d555f7d46349deef56886129da96bd15744 (patch) | |
tree | 32f98af9a531c443812c1ddebd3624c62315eb6a /tools/perf/scripts/python/export-to-sqlite.py | |
parent | ec2eab9deb8009fd8c69d61d04c66b77d438f17d (diff) |
perf scripting perl: Add common_callchain to fix argument order
Since common_callchain has been added to the argument array, we need to
reflect it in perl-based scripts, because otherwise the following args
would be shifted and thus incorrect. E.g. rw-by-pid and calculation of
read and written bytes:
Before:
read counts by pid:
pid comm # reads bytes_requested bytes_read
------ -------------------- ----------- ---------- ----------
19301 dd 4 424510450039736 0
After:
read counts by pid:
pid comm # reads bytes_requested bytes_read
------ -------------------- ----------- ---------- ----------
19301 dd 4 9536 4341
Committer testing:
To see before after first do:
# perf script record rw-by-pid
^C
Now you'll have a perf.data file to report on, then do before and after
using:
# perf script report rw-by-pid
Anbd notice the bytes_request/bytes_read, as above.
Signed-off-by: Michael Petlan <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Benjamin Salon <[email protected]>
Cc: Jiri Olsa <[email protected]>
LPU-Reference: [email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions