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Author SHA1 Message Date
James Clark 9943581c64 perf scripting python: Add function to get a config value 
This can be used to get config values like which objdump Perf uses for
disassembly.

Reviewed-by: Leo Yan <[email protected]>
Signed-off-by: James Clark <[email protected]>
Tested-by: Ganapatrao Kulkarni <[email protected]>
Cc: Ben Gainey <[email protected]>
Cc: Suzuki K Poulose <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Mathieu Poirier <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Ruidong Tian <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Benjamin Gray <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: John Garry <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
 2024-09-24 11:47:03 -07:00
Ben Gainey acfd65c894 tools: perf: Expose sample ID / stream ID to python scripts 
perf script exposes the evsel_name to python scripts as part of the data
passed to the sample or tracepoint handler function, and it passes the id and
stream_id to the throttled/unthrottled handler functions. This makes matching
throttle events and samples difficult.

To make this possible, this change exposes the sample id and stream_id values
to the script.

Signed-off-by: Ben Gainey <[email protected]>
Reviewed-by: Adrian Hunter <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
 2024-02-02 18:05:40 -08:00
Ross Zwisler 1df49ef9ee perf tools docs: Use canonical ftrace path 
The canonical location for the tracefs filesystem is at /sys/kernel/tracing.

But, from Documentation/trace/ftrace.rst:

  Before 4.1, all ftrace tracing control files were within the debugfs
  file system, which is typically located at /sys/kernel/debug/tracing.
  For backward compatibility, when mounting the debugfs file system,
  the tracefs file system will be automatically mounted at:

  /sys/kernel/debug/tracing

A few spots in the perf docs still refer to this older debugfs path, so
let's update them to avoid confusion.

Signed-off-by: Ross Zwisler <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Steven Rostedt (VMware) <[email protected]>
Cc: [email protected]
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
 2023-02-02 16:32:19 -03:00
Like Xu 4da6552c5d perf doc: Fix typos all over the place 
Considering that perf and its subcommands have so many parameters, the
documentation is always the first stop for perf beginners. Fixing some
spelling errors will relax the eyes of some readers a little bit.

 s/specicfication/specification/
 s/caheline/cacheline/
 s/tranasaction/transaction/
 s/complan/complain/
 s/sched_wakep/sched_wakeup/
 s/possble/possible/
 s/methology/methodology/

Signed-off-by: Like Xu <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
 2021-09-27 09:32:28 -03:00
Stephen Brennan b7ae6d4378 perf script python: Fix unintended underline 
The text ranging from "subsystem__event_name" to "raw_syscalls__sys_enter()"
is interpreted by asciidoc as a pair of unconstrained text formatting markers.

The result is that the manual page displayed this text as underlined,
and the HTML pages displayed this text as italicized. Escape the first
double-underscore to prevent this.

https://docs.asciidoctor.org/asciidoc/latest/syntax-quick-reference/

Signed-off-by: Stephen Brennan <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
 2021-08-09 16:54:20 -03:00
Adrian Hunter 1a329b1c8e perf scripting python: Update documentation for srcline etc 
Add new fields and functions to the perf-script-python documentation.

Signed-off-by: Adrian Hunter <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
 2021-06-01 10:04:57 -03:00
Jin Yao ac56aa4549 perf script python: Add dict fields introduction to Documentation 
Add a brief introduction about fields to perf-script-python.txt.

It should help python script developers in easily finding what fields
are supported.

Signed-off-by: Jin Yao <[email protected]>
Reviewed-by: Andi Kleen <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
 2018-06-06 15:40:10 -03:00
SeongJae Park 14fc42fa1b perf script python: Remove dups in documentation examples 
Few shell command examples in perf-script-python.txt has few nitpicks
include:

- tools/perf/scripts/python directory listing command is unnecessarily
  repeated.
- few examples contain additional information in command prompt
  unnecessarily and inconsistently.

This commit fixes them to enhance readability of the document.

Signed-off-by: SeongJae Park <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Tom Zanussi <[email protected]>
Fixes: cff68e5822 ("perf/scripts: Add perf-trace-python Documentation")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
 2017-06-07 20:36:12 -03:00
SeongJae Park 1bf8d5a4a5 perf script python: Updated trace_unhandled() signature 
Default function signature of trace_unhandled() got changed to include a
field dict, but its documentation, perf-script-python.txt has not been
updated.  Fix it.

Signed-off-by: SeongJae Park <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Pierre Tardy <[email protected]>
Fixes: c02514850d ("perf scripts python: Give field dict to unhandled callback")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
 2017-06-07 20:27:32 -03:00
SeongJae Park 26ddb8722d perf script python: Fix wrong code snippets in documentation 
This commit fixes wrong code snippets for trace_begin() and trace_end()
function example definition.

Signed-off-by: SeongJae Park <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Tom Zanussi <[email protected]>
Fixes: cff68e5822 ("perf/scripts: Add perf-trace-python Documentation")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
 2017-06-07 20:27:26 -03:00
SeongJae Park 34d4453dac perf script: Fix documentation errors 
This commit fixes two errors in documents for perf-script-python and
perf-script-perl as below:

- /sys/kernel/debug/tracing events -> /sys/kernel/debug/tracing/events/
- trace_handled -> trace_unhandled

Signed-off-by: SeongJae Park <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Tom Zanussi <[email protected]>
Fixes: cff68e5822 ("perf/scripts: Add perf-trace-python Documentation")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
 2017-06-07 20:27:20 -03:00
Masanari Iida 96355f2cfb perf Documentation: Fix typos in perf/Documentation 
This patch fix spelling typos found in tool/perf/Documentation.

Signed-off-by: Masanari Iida <[email protected]>
Acked-by: Randy Dunlap <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Randy Dunlap <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
 2014-10-15 17:39:02 -03:00
Tom Zanussi 1de7b7e89d perf script: Remove workqueue-stats script 
The tracepoints used by the workqueue-stats script no longer exist so
trying to run the script results in:

  # perf script record workqueue-stats
  invalid or unsupported event: 'workqueue:workqueue_creation'
  Run 'perf list' for a list of valid events

So remove the script until it can be reworked using the new workqueue
tracepoints.

Signed-off-by: Tom Zanussi <[email protected]>
Link: http://lkml.kernel.org/r/e7a7637d5df9df86887c3bff7683574665ec5360.1358527965.git.tom.zanussi@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
 2013-01-24 16:40:53 -03:00
David Ahern e8d0f400ee perf script perl/python: Fix libexec scripts path in Documentation 
The libexec path is /libexec/perf-core/scripts/*/Perf-Trace-Util.

Signed-off-by: David Ahern <[email protected]>
Cc: Ingo Molnar <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
 2012-08-20 09:30:36 -03:00
Jonathan Corbet 625f2a378e sched: Get rid of lock_depth 
Neil Brown pointed out that lock_depth somehow escaped the BKL
removal work.  Let's get rid of it now.

Note that the perf scripting utilities still have a bunch of
code for dealing with common_lock_depth in tracepoints; I have
left that in place in case anybody wants to use that code with
older kernels.

Suggested-by: Neil Brown <[email protected]>
Signed-off-by: Jonathan Corbet <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Andrew Morton <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
 2011-04-24 13:18:38 +02:00
Ingo Molnar 133dc4c39c perf: Rename 'perf trace' to 'perf script' 
Free the perf trace name space and rename the trace to 'script' which is a
better match for the scripting engine.

Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
 2010-11-16 19:37:44 +01:00