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| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2016-07-01 10:03:26 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-07-01 16:34:57 +0200 |
| commit | 1f3736c9c833e40ac4d3a8dc6d661e341df8a259 (patch) | |
| tree | 25181ab3dfea97bc4986f2c4c49866e037a51873 /tools/perf/Documentation/perf-probe.txt | |
| parent | perf probe: Use cache entry if possible (diff) | |
| download | linux-1f3736c9c833e40ac4d3a8dc6d661e341df8a259.tar.xz linux-1f3736c9c833e40ac4d3a8dc6d661e341df8a259.zip | |
perf probe: Show all cached probes
perf probe --list shows all cached probes when --cache is given. Each
caches are shown with on which binary that probed. E.g.:
-----
# perf probe --cache vfs_read \$params
# perf probe --cache -x /lib64/libc-2.17.so getaddrinfo \$params
# perf probe --cache --list
[kernel.kallsyms] (1466a0a250b5d0070c6d0f03c5fed30b237970a1):
vfs_read $params
/usr/lib64/libc-2.17.so (c31ffe7942bfd77b2fca8f9bd5709d387a86d3bc):
getaddrinfo $params
-----
Note that $params requires debuginfo.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/146736020674.27797.13488316780383460180.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-probe.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-probe.txt | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/tools/perf/Documentation/perf-probe.txt b/tools/perf/Documentation/perf-probe.txt index 947db6fe512c..5a70d45015ea 100644 --- a/tools/perf/Documentation/perf-probe.txt +++ b/tools/perf/Documentation/perf-probe.txt @@ -67,7 +67,10 @@ OPTIONS -l:: --list[=[GROUP:]EVENT]:: - List up current probe events. This can also accept filtering patterns of event names. + List up current probe events. This can also accept filtering patterns of + event names. + When this is used with --cache, perf shows all cached probes instead of + the live probes. -L:: --line=:: @@ -110,8 +113,9 @@ OPTIONS adding and removal operations. --cache:: - Cache the probes (with --add option). Any events which successfully added + (With --add) Cache the probes. Any events which successfully added are also stored in the cache file. + (With --list) Show cached probes. --max-probes=NUM:: Set the maximum number of probe points for an event. Default is 128. |