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Re: Compilation performance comparison of gcc3.4.1 and gcc3.5.0 2004-08-30 on MICO sources
- From: Steven Bosscher <stevenb at suse dot de>
- To: Karel Gardas <kgardas at objectsecurity dot com>,GCC Mailing List <gcc at gcc dot gnu dot org>
- Date: Tue, 31 Aug 2004 11:41:06 +0200
- Subject: Re: Compilation performance comparison of gcc3.4.1 and gcc3.5.0 2004-08-30 on MICO sources
- Organization: SUSE Labs
- References: <Pine.LNX.4.43.0408311045480.1006-100000@thinkpad.gardas.net>
On Tuesday 31 August 2004 11:11, Karel Gardas wrote:
> Hello,
>
> several times promised here are finally the results obtained for
> yesterday's main-trunk and -O0/1/2 compilations (whole table is below)
>
> As I've already reported -O0 is better, which is great! And O1 and O2 are
> slower for about 8.5% and 7%.
>
> Interesting files seem to be:
>
> 1) typecode.cc: 40% regression on O1 while 7% speedup on O2
Can you show us the time report for the 40% regression?
Gr.
Steven