On Tue, Dec 29, 2020 at 2:41 AM Song Liu <[email protected]> wrote: > > Add documentation to perf-stat -b option, which stats event for BPF > programs. > > Signed-off-by: Song Liu <[email protected]> > --- > tools/perf/Documentation/perf-stat.txt | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/tools/perf/Documentation/perf-stat.txt > b/tools/perf/Documentation/perf-stat.txt > index 5d4a673d7621a..15b9a646e853d 100644 > --- a/tools/perf/Documentation/perf-stat.txt > +++ b/tools/perf/Documentation/perf-stat.txt > @@ -75,6 +75,20 @@ report:: > --tid=<tid>:: > stat events on existing thread id (comma separated list) > > +-b:: > +--bpf-prog:: > + stat events on existing bpf program id (comma separated list), > + requiring root righs. For example:
Typo: rights It'd be nice if it can show how we can get the id. Thanks, Namhyung > + > + # perf stat -e cycles,instructions --bpf-prog 17247 --timeout 1000 > + > + Performance counter stats for 'BPF program(s) 17247': > + > + 85,967 cycles > + 28,982 instructions # 0.34 insn per cycle > + > + 1.102235068 seconds time elapsed > + > ifdef::HAVE_LIBPFM[] > --pfm-events events:: > Select a PMU event using libpfm4 syntax (see http://perfmon2.sf.net) > -- > 2.24.1 >
