mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-22 17:01:14 +00:00
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 <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> LKML-Reference: <20100225133519.6725.58816.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
parent
f3ab481ca6
commit
ee391de876
1 changed files with 26 additions and 2 deletions
|
@ -41,7 +41,8 @@ OPTIONS
|
|||
|
||||
-d::
|
||||
--del=::
|
||||
Delete a probe event.
|
||||
Delete probe events. This accepts glob wildcards('*', '?') and character
|
||||
classes(e.g. [a-z], [!A-Z]).
|
||||
|
||||
-l::
|
||||
--list::
|
||||
|
@ -50,7 +51,11 @@ OPTIONS
|
|||
-L::
|
||||
--line=::
|
||||
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)
|
||||
|
||||
-f::
|
||||
--force::
|
||||
Forcibly add events with existing name.
|
||||
|
||||
PROBE SYNTAX
|
||||
------------
|
||||
|
@ -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.
|
||||
|
||||
EXAMPLES
|
||||
--------
|
||||
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*'
|
||||
|
||||
|
||||
SEE ALSO
|
||||
--------
|
||||
linkperf:perf-trace[1], linkperf:perf-record[1]
|
||||
|
|
Loading…
Reference in a new issue