svn commit: r265792 - head/sys/kern

Slawa Olhovchenkov slw at zxy.spb.ru
Tue May 20 16:27:06 UTC 2014


On Tue, May 20, 2014 at 09:04:25AM -0700, Adrian Chadd wrote:

> On 20 May 2014 08:41, Slawa Olhovchenkov <slw at zxy.spb.ru> wrote:
> 
> >> (But if you try it on 10.0 and it changes things, by all means let me know.)
> >
> > I am try on 10.0, but not sure about significant improvement (may be
> > 10%).
> >
> > For current CPU (E5-2650 v2 @ 2.60GHz) hwpmc don't working (1. after
> > collect some data `pmcstat -R sample.out -G out.txt` don't decode any;
> > 2. kldunload hwpmc do kernel crash) and I can't collect detailed
> > profile information.
> 
> Yup. I'm starting to get really ticked off at how pmc logging on
> multi-core devices just "stops" after a while. I'll talk with other
> pmc people and see if we can figure out what the heck is going on. :(

pmc work on E5-2620 @ 2.00GHz (NOT E5 _v2_)



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