Re: Costly Context Switches

[Arnaldo Carvalho de Melo]

Em Mon, Dec 13, 2010 at 03:30:46PM +0100, Andres Freund escreveu:
> On Monday 13 December 2010 15:29:11 Arnaldo Carvalho de Melo wrote:
> > Em Mon, Dec 13, 2010 at 03:25:54PM +0100, Andres Freund escreveu:
> > > Hm. Its also a good starting point but it may be harder to see the
> > > differences between dovecot-2.0 and dovecot-1.2 that way because its
> > > harder to see if its

> > Well, for that he can try 'perf diff', i.e.:

> > 1. run perf record on dovecot-1.2
> > 2. run perf record on dovecot-2.0
> > 3. perf diff
> Wow. That one I didnt know about yet.
> 
> Too bad that perf docs/examples are so spread out...

There is a bit of info on these places:

http://vger.kernel.org/~acme/perf/lk2010-perf-paper.pdf
http://vger.kernel.org/~acme/perf/perf-plumbers2010.pdf

Also please consider helping organizing the existing documentation in a
way that gets them more easily accessible :-)

- Arnaldo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/