Re: Adding cache misses and references to list of default events for perf stat?

[Milian Wolff <mail@milianw.de>]

On Wednesday 05 November 2014 11:26:36 Namhyung Kim wrote:
> Hi Andi and Milian,
> 
> On Tue, 04 Nov 2014 12:16:25 -0800, Andi Kleen wrote:
> > Milian Wolff <mail@milianw.de> writes:
> >> Hello all,
> >> 
> >> could we have the cache-references,cache-misses events added to the list
> >> of
> >> default events for perf stat? I think it is a very valuable metric for
> >> all
> >> user-space applications.
> >> 
> >> Currently, I run perf stat twice, once with the default events, and once
> >> with
> >> 
> >> perf stat -e cache-references,cache-misses ...
> >> 
> >> there is no easy way to append two events to the list of default events.
> >> 
> >> So, what do you think?
> > 
> > On most systems with only four counters it'll start multiplexing, which
> > will give much worse results. Defaulting to non multiplexing is much
> > better.
> 
> Anyway it has -d/--detailed option which can be specified up to 3 times.

Thanks, that helps!

Cheers

-- 
Milian Wolff
mail@milianw.de
http://milianw.de