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authorJiri Olsa <[email protected]>2020-12-16 09:39:11 +0100
committerArnaldo Carvalho de Melo <[email protected]>2020-12-17 14:36:17 -0300
commitfeca8a8342d3f53e394c9fc7d985b98ec0250ce1 (patch)
tree6b872bb3b9722c8dde8f649eca151adef81b0591
parent526671bfc47df175eb87f96067d51b389a8af50d (diff)
perf tools: Reformat record's control fd man text
Adding available control commands in separate paragraph, so it's more readable and easier to add new commands. Signed-off-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Alexei Budankov <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Michael Petlan <[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]>
-rw-r--r--tools/perf/Documentation/perf-record.txt16
1 files changed, 11 insertions, 5 deletions
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 2d30e525a600..34cf651ee237 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -637,11 +637,17 @@ endif::HAVE_LIBPFM[]
--control=fifo:ctl-fifo[,ack-fifo]::
--control=fd:ctl-fd[,ack-fd]::
ctl-fifo / ack-fifo are opened and used as ctl-fd / ack-fd as follows.
-Listen on ctl-fd descriptor for command to control measurement ('enable': enable events,
-'disable': disable events, 'snapshot': AUX area tracing snapshot). Measurements can be
-started with events disabled using --delay=-1 option. Optionally send control command
-completion ('ack\n') to ack-fd descriptor to synchronize with the controlling process.
-Example of bash shell script to enable and disable events during measurements:
+Listen on ctl-fd descriptor for command to control measurement.
+
+Available commands:
+ 'enable' : enable events
+ 'disable' : disable events
+ 'snapshot': AUX area tracing snapshot).
+
+Measurements can be started with events disabled using --delay=-1 option. Optionally
+send control command completion ('ack\n') to ack-fd descriptor to synchronize with the
+controlling process. Example of bash shell script to enable and disable events during
+measurements:
#!/bin/bash