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Re: Timings for reassociation pass
- From: Richard Guenther <richard dot guenther at gmail dot com>
- To: Daniel Berlin <dberlin at dberlin dot org>
- Cc: Diego Novillo <dnovillo at redhat dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>
- Date: Sun, 15 May 2005 13:25:04 +0200
- Subject: Re: Timings for reassociation pass
- References: <1116125094.31071.6.camel@linux.site>
- Reply-to: Richard Guenther <richard dot guenther at gmail dot com>
On 5/15/05, Daniel Berlin <dberlin@dberlin.org> wrote:
> For the curious, some timings for the simple reassociation pass at:
> http://gcc.gnu.org/ml/gcc-patches/2005-05/msg00751.html
>
> For tramp3d, out of 386 seconds, reassociation takes .24 seconds (0%).
> Almost all the time is in hash lookups.
>
> By comparison, splitting critical edges takes longer :)
>
> tree split crit edges : 0.25 ( 0%) usr
> tree reassociation : 0.24 ( 0%) usr
>
> It takes roughly the same relative % for cc1-i-files, and MICO as well.
I'm curious - does it buy us anything on these benchmarks? I mean
f.i. in runtime for tramp3d?
Richard.