Re: perf: odd event scheduling issue

Peter Zijlstra
2015-05-20T07:01:44Z

On Tue, May 19, 2015 at 11:07:09PM -0400, Vince Weaver wrote:
> Hello
>
> so I'm running 4.1-rc4 on my Haswell machine and a lot of my perf_event
> testsuite is failing. There seems to be weird event scheduling issues.
>
> I can reproduce it with plain perf; simple event groups that should work
> fine can't be scheduled.
>
> vince@haswell:~$ perf stat -e \{cycles,instructions\} sleep 1
>

Hmm indeed, my ivb-ep does the same thing. Lemme go poke at that.