Re: [PATCH] perf stat: Support regex pattern in --for-each-cgroup

[Namhyung Kim]

Hi Andi,

On Sat, Oct 24, 2020 at 2:04 AM Andi Kleen <ak@xxxxxxxxxxxxxxx> wrote:
>
> On Fri, Oct 23, 2020 at 04:42:34PM +0900, Namhyung Kim wrote:
> > To make the command line even more compact with cgroups, support regex
> > pattern matching in cgroup names.
> >
> >   $ perf stat -a -e cpu-clock,cycles --for-each-cgroup '^.$' sleep 1
>
> The example doesn't exactly show the benefit. So ^.$ would be only
> for one character cgroups?

Right, I know it's not a good example but just wanted to show the
possibility of regex patterns.  Let me come up with a better one.

>
> Missing documentation updates.

Will add.

Thanks
Namhyung