diff options
| author | Adrian Hunter | 2022-08-11 20:04:09 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2022-08-11 18:49:38 -0300 |
| commit | 696d0a4cb8009af7bb3b45dc4d94679a7c9a2318 (patch) | |
| tree | f9b57aa68cda84c21d31cb3d36451109cbc322ca | |
| parent | ade1d0307b2fb3d9192398e9b638b1bb6ed36028 (diff) | |
perf script: Fix missing guest option documentation
The 'perf script' documentation is missing several options relating to
guests. Add them.
Fixes: 15a108af1a18b597 ("perf script: Allow specifying the files to process guest samples")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220811170411.84154-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/Documentation/perf-script.txt | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index 4c95e79e2c39..48ee42a891b6 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -487,6 +487,29 @@ include::itrace.txt[] For itrace only show specified functions and their callees for itrace. Multiple functions can be separated by comma. +--guestmount=<path>:: + Guest OS root file system mount directory. Users mount guest OS + root directories under <path> by a specific filesystem access method, + typically, sshfs. + For example, start 2 guest OS, one's pid is 8888 and the other's is 9999: +[verse] + $ mkdir \~/guestmount + $ cd \~/guestmount + $ sshfs -o allow_other,direct_io -p 5551 localhost:/ 8888/ + $ sshfs -o allow_other,direct_io -p 5552 localhost:/ 9999/ + $ perf script --guestmount=~/guestmount + +--guestkallsyms=<path>:: + Guest OS /proc/kallsyms file copy. perf reads it to get guest + kernel symbols. Users copy it out from guest OS. + +--guestmodules=<path>:: + Guest OS /proc/modules file copy. perf reads it to get guest + kernel module information. Users copy it out from guest OS. + +--guestvmlinux=<path>:: + Guest OS kernel vmlinux. + --switch-on EVENT_NAME:: Only consider events after this event is found. |