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| author | Ingo Molnar <mingo@kernel.org> | 2020-04-04 10:35:15 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-04-04 10:35:15 +0200 |
| commit | 7dc41b9b99cd0037a418ac47e342d56a438df649 (patch) | |
| tree | e257a65d57043746503d55e877697339e0eea80a /init | |
| parent | 42595ce90b9d4a6b9d8c5a1ea78da4eeaf7e086a (diff) | |
| parent | 9ff76cea4e9e6d49a6f764ae114fc0fb8de97816 (diff) | |
| download | linux-7dc41b9b99cd0037a418ac47e342d56a438df649.tar.bz2 | |
Merge tag 'perf-urgent-for-mingo-5.7-20200403' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes and improvements from Arnaldo Carvalho de Melo:
perf python:
Arnaldo Carvalho de Melo:
- Fix clang detection to strip out options passed in $CC.
build:
He Zhe:
- Normalize gcc parameter when generating arch errno table, fixing
the build by removing options from $(CC).
Sam Lunt:
- Support Python 3.8+ in Makefile.
perf report/top:
Arnaldo Carvalho de Melo:
- Fix title line formatting.
perf script:
Andreas Gerstmayr:
- Fix SEGFAULT when using DWARF mode.
- Fix invalid read of directory entry after closedir(), found with valgrind.
Hagen Paul Pfeifer:
- Introduce --deltatime option.
Stephane Eranian:
- Allow --symbol to accept hexadecimal addresses.
Ian Rogers:
- Add -S/--symbols documentation
Namhyung Kim:
- Add --show-cgroup-events option.
perf python:
Arnaldo Carvalho de Melo:
- Include rwsem.c in the python binding, needed by the cgroups improvements.
build-test:
Arnaldo Carvalho de Melo:
- Honour JOBS to override detection of number of cores
perf top:
Jin Yao:
- Support --group-sort-idx to change the sort order
- perf top: Support hotkey to change sort order
perf pmu-events x86:
Jin Yao:
- Use CPU_CLK_UNHALTED.THREAD in Kernel_Utilization metric
perf symbols arm64:
Kemeng Shi:
- Fix arm64 gap between kernel start and module end
kernel perf subsystem:
Namhyung Kim:
- Add PERF_RECORD_CGROUP event and Add PERF_SAMPLE_CGROUP feature,
to allow cgroup tracking, saving a link between cgroup path and
its id number.
perf cgroup:
Namhyung Kim:
- Maintain cgroup hierarchy.
perf report:
Namhyung Kim:
- Add 'cgroup' sort key.
perf record:
Namhyung Kim:
- Support synthesizing cgroup events for pre-existing cgroups.
- Add --all-cgroups option
Documentation:
Tony Jones:
- Update docs regarding kernel/user space unwinding.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig index 697d109387ed..93e1fafa88ce 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1030,7 +1030,8 @@ config CGROUP_PERF help This option extends the perf per-cpu mode to restrict monitoring to threads which belong to the cgroup specified and run on the - designated cpu. + designated cpu. Or this can be used to have cgroup ID in samples + so that it can monitor performance events among cgroups. Say N if unsure. |