Re: [PATCH] perf record: mmap output file - RFC

From: Jiri Olsa
Date: Thu Sep 26 2013 - 14:24:17 EST


On Thu, Sep 26, 2013 at 12:12:02PM -0600, David Ahern wrote:
> On 9/26/13 11:51 AM, Jiri Olsa wrote:
> >but it's still faster, since we finally get perf a chance to sleep ;-)
> >
> >new time:
> > real 0m30.392s
> > user 0m0.041s
> > sys 0m0.389s
> >
> >old time:
> > real 0m32.235s
> > user 0m3.080s
> > sys 0m14.444s
>
> excellent.
>
> >
> >
> >>[ perf record: Captured and wrote 8.203 MB /tmp/perf.data (~358388 samples) ]
> >>
> >>Before I get too far down this path I wanted to get comments on the approach.
> >
> >I think it's worthwhile doing this
>
> If you can toss it onto your queue to run through it other use cases
> -- like the 'make -j' on kernel builds. I am doing the same here and
> if all goes well I submit with some other patches next week.

ok, np

jirka
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