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| author | Tomas Glozar <tglozar@redhat.com> | 2025-10-10 10:33:36 +0200 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2025-11-05 11:19:17 -0700 |
| commit | 122a552b5b1c1a33fa14e9d2d7d6a92a553a9c3e (patch) | |
| tree | b54f982ad401dd0149fd42ecdba002fc622b4e25 /Documentation/tools | |
| parent | 198fcc7cb832b995a84b32c52f016223c9ac1a82 (diff) | |
Documentation/rtla: Mention default cgroup state
The RTLA option -C/--cgroup is used to set a cgroup for workload
threads. This is either a specific cgroup, if passed an argument, or
rtla's cgroup, if no argument is given.
Expand the documentation of the -C option to also include the
information about the cgroup settings when the option is not specified.
Signed-off-by: Tomas Glozar <tglozar@redhat.com>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20251010083338.478961-8-tglozar@redhat.com>
Diffstat (limited to 'Documentation/tools')
| -rw-r--r-- | Documentation/tools/rtla/common_options.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/tools/rtla/common_options.txt b/Documentation/tools/rtla/common_options.txt index b842f065c8f6..26e94d291a70 100644 --- a/Documentation/tools/rtla/common_options.txt +++ b/Documentation/tools/rtla/common_options.txt @@ -48,6 +48,8 @@ Set a *cgroup* to the tracer's threads. If the **-C** option is passed without arguments, the tracer's thread will inherit **rtla**'s *cgroup*. Otherwise, the threads will be placed on the *cgroup* passed to the option. + If not set, the behavior differs between workload types. User workloads created by rtla will inherit rtla's cgroup. Kernel workloads are assigned the root cgroup. + **--warm-up** *s* After starting the workload, let it run for *s* seconds before starting collecting the data, allowing the system to warm-up. Statistical data generated during warm-up is discarded. |