Re: [PATCHSET 0/5] perf tools: Speed up dwarf callchain post-unwinding for libunwind (v4)

From: Arnaldo Carvalho de Melo
Date: Wed Oct 15 2014 - 15:24:50 EST


Em Mon, Oct 13, 2014 at 08:11:58PM +0200, Jiri Olsa escreveu:
> On Mon, Oct 06, 2014 at 09:45:58AM +0900, Namhyung Kim wrote:
> > Hello,
> >
> > This is v4 for libunwind callchain post processing speed up. It was
> > able to reduce 50% of processing time by using global cache provided
> > in libunwind. In this version, I decided to use the existing
> > callchain_param.record_mode instead of adding a new field in the
> > symbol_conf.
> >
> > The patch 4 and 5 are just cleanups so that we can easily find out
> > that which part of code uses the thread->priv.
> >
> > You can also get it from 'perf/callchain-unwind-v4' branch on my tree:
> >
> > git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git
> >
> > Thanks,
> > Namhyung
> >
> >
> > Namhyung Kim (5):
> > perf report: Set callchain_param.record_mode for future use
> > perf callchain: Create an address space per thread
> > perf callchain: Use global caching provided by libunwind
> > perf kvm: Use thread_{,_set}_priv helpers
> > perf trace: Use thread_{,_set}_priv helpers
>
> Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>

Thanks, applied.

- Arnaldo
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