Re: [PATCHv2 00/14] perf tools: Speedup DWARF unwind

[Jiri Olsa]

On Fri, May 23, 2014 at 03:26:27PM +0200, Jean Pihet wrote:
> Jiri,
> 
> 
> On 23 May 2014 10:13, Jiri Olsa <jolsa@xxxxxxxxxx> wrote:
> > ping ;-)
> This looks a ping to yourself ;-)

:-)

> 
> Here are the results on ARMv7:
> - libunwind: between -29% in execution time for light load (i.e. using
> not-so-deep backtraces from the stress app.) and -49% for deep
> backtrace (the 'stress_bt' app.),
> - libdw: no significant improvement (0-2% improvement).

nice, thanks for testing!

> 
> Cf. https://wiki.linaro.org/LEG/Engineering/TOOLS/perf-callstack-unwinding#Speed_improvement
> for more details.
> 
> FWIW:
> Acked-by: Jean Pihet <jean.pihet@xxxxxxxxxx>

thanks,
jirka
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