- Show only failing syscalls with 'perf trace --failure' (Arnaldo Carvalho de Melo)
e.g: See what 'openat' syscalls are failing:
# perf trace --failure -e openat
762.323 ( 0.007 ms): VideoCapture/4566 openat(dfd: CWD, filename: /dev/video2) = -1 ENOENT No such file or directory
<SNIP N /dev/videoN open attempts... sigh, where is that improvised camera lid?!? >
790.228 ( 0.008 ms): VideoCapture/4566 openat(dfd: CWD, filename: /dev/video63) = -1 ENOENT No such file or directory
^C#
- Show information about the event (freq, nr_samples, total period/nr_events) in
the annotate --tui and --stdio2 'perf annotate' output, similar to the
first line in the 'perf report --tui', but just for the samples for a
the annotated symbol (Arnaldo Carvalho de Melo)
- Introduce 'perf version --build-options' to show what features were
linked, aliased as well as a shorter 'perf -vv' (Jin Yao)
- Add a "dso_size" sort order (Kim Phillips)
- Remove redundant ')' in the tracepoint output in 'perf trace' (Changbin Du)
- Synchronize x86's cpufeatures.h, no effect on toolss (Arnaldo Carvalho de Melo)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-----BEGIN PGP SIGNATURE-----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=tvR6
-----END PGP SIGNATURE-----
Merge tag 'perf-core-for-mingo-4.17-20180403' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
- Show only failing syscalls with 'perf trace --failure' (Arnaldo Carvalho de Melo)
e.g: See what 'openat' syscalls are failing:
# perf trace --failure -e openat
762.323 ( 0.007 ms): VideoCapture/4566 openat(dfd: CWD, filename: /dev/video2) = -1 ENOENT No such file or directory
<SNIP N /dev/videoN open attempts... sigh, where is that improvised camera lid?!? >
790.228 ( 0.008 ms): VideoCapture/4566 openat(dfd: CWD, filename: /dev/video63) = -1 ENOENT No such file or directory
^C#
- Show information about the event (freq, nr_samples, total period/nr_events) in
the annotate --tui and --stdio2 'perf annotate' output, similar to the
first line in the 'perf report --tui', but just for the samples for a
the annotated symbol (Arnaldo Carvalho de Melo)
- Introduce 'perf version --build-options' to show what features were
linked, aliased as well as a shorter 'perf -vv' (Jin Yao)
- Add a "dso_size" sort order (Kim Phillips)
- Remove redundant ')' in the tracepoint output in 'perf trace' (Changbin Du)
- Synchronize x86's cpufeatures.h, no effect on toolss (Arnaldo Carvalho de Melo)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>