diff options
| author | Andi Kleen <ak@linux.intel.com> | 2017-09-05 20:00:28 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-09-13 15:49:14 +0300 |
| commit | 84c417422798c897f637b0249f64a52807b4a61b (patch) | |
| tree | e68d787314c8837fd7b0bf5b44c2c752813102a7 /tools/perf/Documentation | |
| parent | b90f1333ef08d2a497ae239798868b046f4e3a97 (diff) | |
| download | linux-84c417422798c897f637b0249f64a52807b4a61b.tar.xz | |
perf record: Support direct --user-regs arguments
USER_REGS can currently only collected implicitely with call graph
recording. Sometimes it is useful to see them separately, and filter
them. Add a new --user-regs option to record that is similar to
--intr-regs, but acts on user regs.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170905170029.19722-1-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-record.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index e397453e5a46..68a1ffb0a8a5 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -377,6 +377,8 @@ symbolic names, e.g. on x86, ax, si. To list the available registers use --intr-regs=\?. To name registers, pass a comma separated list such as --intr-regs=ax,bx. The list of register is architecture dependent. +--user-regs:: +Capture user registers at sample time. Same arguments as -I. --running-time:: Record running and enabled time for read events (:S) |