Re: [PATCH 0/3] perf tools: Speedup DWARF unwind

[Ingo Molnar]

* Jiri Olsa <jolsa@xxxxxxxxxx> wrote:

> hi,
> trying to speedup DWARF unwind report code by factoring
> related code:
>   - caching sample's registers access
>   - keep dso data file descriptor open for the
>     life of the dso object
>   - replace dso cache code by mapping dso data file
>     directly for the life of the dso object
> 
> The speedup is mainly for libunwind unwind. The libdw will benefit
> mainly from cached registers access, because it handles dso data
> accesses by itself.. and anyway it's still faster ;-).

Just curious: do you have any numbers about how much faster it got in 
practice?

Thanks,

	Ingo
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