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5172a77724
- Introduce enum timerlat_tracing_mode
Now that BPF based sampling has been added to timerlat, add an enum to
represent which mode timerlat is running in.
- Add action on timelat threshold feature
A new option, --on-threshold, is added, taking an argument
that further specifies the action. Actions added in this patch are:
- trace[,file=<filename>]: Saves tracefs buffer, optionally taking a
filename.
- signal,num=<sig>,pid=<pid>: Sends signal to process. "parent" might
be specified instead of number to send signal to parent process.
- shell,command=<command>: Execute shell command.
- Allow resuming tracing in timerlat bpf
rtla-timerlat BPF program uses a global variable stored in a .bss section to
store whether tracing has been stopped. Map it to allow it to resume tracing
after it has been stopped.
- Add continue action to timerlat
Introduce option to resume tracing after a latency threshold overflow. The
option is implemented as an action named "continue".
- Add action on end feature to timerlat
Implement actions on end next to actions on threshold. A new option,
--on-end is added, parallel to --on-threshold. Instead of being executed
whenever a latency threshold is reached, it is executed at the end of the
measurement.
- Have rtla tests check output with grep
Add argument to the check command in the test suite that takes a regular
expression that the output of rtla command is checked against. This allows
testing for specific information in rtla output in addition to checking the
return value.
- Add tests for timerlat actions
- Update the documentation for the new features
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Merge tag 'trace-tools-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing tools updates from Steven Rostedt:
- Introduce enum timerlat_tracing_mode
Now that BPF based sampling has been added to timerlat, add an enum
to represent which mode timerlat is running in
- Add action on timelat threshold feature
A new option, --on-threshold, is added, taking an argument that
further specifies the action. Actions added in this patch are:
- trace[,file=<filename>]: Saves tracefs buffer, optionally taking a
filename
- signal,num=<sig>,pid=<pid>: Sends signal to process. "parent" might
be specified instead of number to send signal to parent process
- shell,command=<command>: Execute shell command
- Allow resuming tracing in timerlat bpf
rtla-timerlat BPF program uses a global variable stored in a .bss
section to store whether tracing has been stopped. Map it to allow it
to resume tracing after it has been stopped
- Add continue action to timerlat
Introduce option to resume tracing after a latency threshold
overflow. The option is implemented as an action named "continue"
- Add action on end feature to timerlat
Implement actions on end next to actions on threshold. A new option,
--on-end is added, parallel to --on-threshold. Instead of being
executed whenever a latency threshold is reached, it is executed at
the end of the measurement
- Have rtla tests check output with grep
Add argument to the check command in the test suite that takes a
regular expression that the output of rtla command is checked
against. This allows testing for specific information in rtla output
in addition to checking the return value
- Add tests for timerlat actions
- Update the documentation for the new features
* tag 'trace-tools-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
rtla/tests: Test timerlat -P option using actions
rtla/tests: Add grep checks for base test cases
Documentation/rtla: Add actions feature
rtla/tests: Limit duration to maximum of 10s
rtla/tests: Add tests for actions
rtla/tests: Check rtla output with grep
rtla/timerlat: Add action on end feature
rtla/timerlat: Add continue action
rtla/timerlat_bpf: Allow resuming tracing
rtla/timerlat: Add action on threshold feature
rtla/timerlat: Introduce enum timerlat_tracing_mode
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| .. | ||
| common_appendix.rst | ||
| common_hist_options.rst | ||
| common_options.rst | ||
| common_osnoise_description.rst | ||
| common_osnoise_options.rst | ||
| common_timerlat_aa.rst | ||
| common_timerlat_description.rst | ||
| common_timerlat_options.rst | ||
| common_top_options.rst | ||
| index.rst | ||
| Makefile | ||
| rtla-hwnoise.rst | ||
| rtla-osnoise-hist.rst | ||
| rtla-osnoise-top.rst | ||
| rtla-osnoise.rst | ||
| rtla-timerlat-hist.rst | ||
| rtla-timerlat-top.rst | ||
| rtla-timerlat.rst | ||
| rtla.rst | ||