Re: [PATCH] perf test: Fix test_arm_coresight.sh failures on Juno

[Arnaldo Carvalho de Melo]

Em Mon, Oct 10, 2022 at 10:21:22AM +0100, James Clark escreveu:
> On 10/10/2022 08:41, Leo Yan wrote:
> > On Thu, Oct 06, 2022 at 04:11:05PM +0100, James Clark wrote:
> >>   Error:
> >>   The perf.data data has no samples!
> >>   0

> > Thanks for confirmation.  It's a bit weird that your Juno board doesn't
> > produce all zeros for timestamp packets.

> >> I think the issue is that ls is quite quick to run, so not much trace is
> >> generated for Perf. And it just depends on the scheduling which is
> >> slightly different on Juno. I don't think it's a bug. On N1SDP there are
> >> only 134 samples generated with i1000i, so it could probably end up with
> >> a random run generating 0 there too.

> > Agreed, changing to smaller interval makes sense for me.

> > Reviewed-by: Leo Yan <leo.yan@xxxxxxxxxx>

> Thanks for the review Leo

Thanks, applied.

- Arnaldo