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Subject[PATCH -tip v3&10 11/18] perf probe: Update perf probe document
Update perf-probe.txt to suit to current perf-probe command
and add some examples.

Signed-off-by: Masami Hiramatsu <>
Cc: Ingo Molnar <>
Cc: Frederic Weisbecker <>
Cc: Arnaldo Carvalho de Melo <>
Cc: Peter Zijlstra <>
Cc: Paul Mackerras <>
Cc: Mike Galbraith <>
Cc: K.Prasad <>

tools/perf/Documentation/perf-probe.txt | 28 ++++++++++++++++++++++++++--
1 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Documentation/perf-probe.txt b/tools/perf/Documentation/perf-probe.txt
index 2de3407..5fe63c0 100644
--- a/tools/perf/Documentation/perf-probe.txt
+++ b/tools/perf/Documentation/perf-probe.txt
@@ -41,7 +41,8 @@ OPTIONS

- Delete a probe event.
+ Delete probe events. This accepts glob wildcards('*', '?') and character
+ classes(e.g. [a-z], [!A-Z]).

@@ -50,7 +51,11 @@ OPTIONS
Show source code lines which can be probed. This needs an argument
- which specifies a range of the source code.
+ which specifies a range of the source code. (see LINE SYNTAX for detail)
+ Forcibly add events with existing name.

@@ -76,6 +81,25 @@ and 'ALN2' is end line number in the file. It is also possible to specify how
many lines to show by using 'NUM'.
So, "source.c:100-120" shows lines between 100th to l20th in source.c file. And "func:10+20" shows 20 lines from 10th line of func function.

+Display which lines in schedule() can be probed:
+ ./perf probe --line schedule
+Add a probe on schedule() function 12th line with recording cpu local variable:
+ ./perf probe schedule:12 cpu
+ or
+ ./perf probe --add='schedule:12 cpu'
+ this will add one or more probes which has the name start with "schedule".
+Delete all probes on schedule().
+ ./perf probe --del='schedule*'
linkperf:perf-trace[1], linkperf:perf-record[1]

Masami Hiramatsu

Software Engineer
Hitachi Computer Products (America), Inc.
Software Solutions Division


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