On Sun, Sep 29, 2019 at 05:29:13PM +0200, Jiri Olsa wrote: > On Wed, Sep 25, 2019 at 10:02:16AM +0800, Jin Yao wrote: > > This patch series supports the new options "--all-kernel" and "--all-user" > > in perf-stat. > > > > For example, > > > > root@kbl:~# perf stat -e cycles,instructions --all-kernel --all-user -a -- > > sleep 1 > > > > Performance counter stats for 'system wide': > > > > 19,156,665 cycles:k > > 7,265,342 instructions:k # 0.38 insn per cycle > > 4,511,186,293 cycles:u > > 121,881,436 instructions:u # 0.03 insn per cycle > > hi, > I think we should follow --all-kernel/--all-user behaviour from record > command, adding extra events seems like unnecesary complexity to me
I think it's useful. Makes it easy to do kernel/user break downs. perf record should support the same. -Andi
