diff options
| author | Joshua Martinez <joshuamart@google.com> | 2021-06-17 02:18:29 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-06-24 21:33:35 +0300 |
| commit | 51f382428c17f172f430f9be8de4246b8f15f97c (patch) | |
| tree | bc17875c7e0032c7fbd047428fe606caa6644484 /tools/perf/Documentation/perf-top.txt | |
| parent | b743b86ce6bb2b32a05962a9cc713894d9736ae1 (diff) | |
| download | linux-51f382428c17f172f430f9be8de4246b8f15f97c.tar.xz | |
perf top: Add cgroup support for perf top (-G)
Added callback option (-G) to support cgroups for 'perf top'.
Added condition to make sure -cgroup and --all-cgroups aren't both enabled.
Example:
$perf top -e cycles -G system.slice/docker-6b95a5eb649c0d671eba3835f0d93973d05a088f3ae8602246bde37affb1ba3e.scope -a --stdio
PerfTop: 3330 irqs/sec kernel:68.2% exact: 0.0% lost: 0/0 drop: 0/11075 [4000Hz cpu-clock], (all, 4 CPUs)
-------------------------------------------------------------------------------------------------------------------------------------------------------
27.32% [unknown] [.] 0x00007f8ab7b69352
11.44% [kernel] [k] 0xffffffff968cd657
3.12% [kernel] [k] 0xffffffff96160e96
2.63% [kernel] [k] 0xffffffff96160eb0
1.96% [kernel] [k] 0xffffffff9615fcf6
1.42% [kernel] [k] 0xffffffff964ddfc7
1.09% [kernel] [k] 0xffffffff96160e90
0.81% [kernel] [k] 0xffffffff96160eb3
0.67% [kernel] [k] 0xffffffff9615fec1
0.57% [kernel] [k] 0xffffffff961ee1d0
0.53% [unknown] [.] 0x00007f8ab7b6666c
0.53% [kernel] [k] 0xffffffff96160e64
0.52% [kernel] [k] 0xffffffff9616c303
0.51% [kernel] [k] 0xffffffffc08e7d50
...
Signed-off-by: Joshua Martinez <joshuamart@google.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: joshua martinez <joshuamart@google.com>
Link: http://lore.kernel.org/lkml/20210616231829.3735671-1-joshuamart@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-top.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-top.txt | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt index bba5ffb05463..9898a32b8d9c 100644 --- a/tools/perf/Documentation/perf-top.txt +++ b/tools/perf/Documentation/perf-top.txt @@ -277,6 +277,18 @@ Default is to monitor all CPUS. Record events of type PERF_RECORD_NAMESPACES and display it with the 'cgroup_id' sort key. +-G name:: +--cgroup name:: +monitor only in the container (cgroup) called "name". This option is available only +in per-cpu mode. The cgroup filesystem must be mounted. All threads belonging to +container "name" are monitored when they run on the monitored CPUs. Multiple cgroups +can be provided. Each cgroup is applied to the corresponding event, i.e., first cgroup +to first event, second cgroup to second event and so on. It is possible to provide +an empty cgroup (monitor all the time) using, e.g., -G foo,,bar. Cgroups must have +corresponding events, i.e., they always refer to events defined earlier on the command +line. If the user wants to track multiple events for a specific cgroup, the user can +use '-e e1 -e e2 -G foo,foo' or just use '-e e1 -e e2 -G foo'. + --all-cgroups:: Record events of type PERF_RECORD_CGROUP and display it with the 'cgroup' sort key. |