Re: [PATCHSET v2 0/7] perf inject: Speed build-id injection

[Jiri Olsa]

On Wed, Sep 23, 2020 at 05:05:30PM +0900, Namhyung Kim wrote:
> Hello,
> 
> This is my second attempt to speed up build-id injection.  As this is
> to improve performance, I've added a benchmark for it.  Please look at
> the usage in the first commit.
> 
> By default, it measures average processing time of 100 MMAP2 events
> and 10000 SAMPLE events.  Below is the current result on my laptop.
> 
>   $ perf bench internals inject-build-id
>   # Running 'internals/inject-build-id' benchmark:
>     Average build-id injection took: 22.997 msec (+- 0.067 msec)
>     Average time per event: 2.255 usec (+- 0.007 usec)
> 
> With this patchset applied, it got this:
> 
>   $ perf bench internals inject-build-id
>   # Running 'internals/inject-build-id' benchmark:
>     Average build-id injection took: 18.441 msec (+- 0.106 msec)
>     Average time per event: 1.808 usec (+- 0.010 usec)
>     Average build-id-all injection took: 13.451 msec (+- 0.132 msec)
>     Average time per event: 1.319 usec (+- 0.013 usec)

nice, I can see that speed up as well

Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>

thanks,
jirka