Re: [GIT PULL 00/52] New Tool: perf c2c

Jiri Olsa
2016-10-24T09:42:39Z

On Mon, Oct 24, 2016 at 11:23:28AM +0200, Ingo Molnar wrote:
>
> * Jiri Olsa <jolsa@redhat.com> wrote:
>
> > > If I do 'perf report' I get two events:
> > >
> > > Available samples
> > > 24K cpu/mem-loads,ldlat=30/P
> > > 45K cpu/mem-stores/P
> > >
> > > and both have some real data.
> > >
> > > What am I missing?
> >
> > hm, most likely you did not generate any remote HITMs.. if it was on the laptop?
>
> Yeah.
>
> > you might get some results for local HITMs with -d option:
> >
> > $ perf c2c report -d lcl
> >
> > the default display/filter is for Remote HITMs.. perhaps we could be
> > smart enough and switch to local when we found no data for remote
>
> Yeah, this did the trick.
>
> Could we please make sure there's always actionable output by the tool? I.e. it
> should either clearly refuse to work (due to lack of hw), or it should produce
> something meaningful.

ok, will do

thanks,
jirka