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Re: SPEC 2000 results on PowerPC
- From: Andrew Pinski <apinski at apple dot com>
- To: Mark Mitchell <mark at codesourcery dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Tue, 17 Aug 2004 11:02:07 -0700
- Subject: Re: SPEC 2000 results on PowerPC
- References: <41223D86.5000708@codesourcery.com>
On Aug 17, 2004, at 10:16 AM, Mark Mitchell wrote:
I've now got SPEC 2000 results for PowerPC.
I'm using a G5 and ran with "-O2 -mcpu=970". My goal is not to
demonstrate how fast this machine is, but rather to compare the
current mainline with the last release.
The current mainline is, I would say, somewhat better than 3.4.1.
Three tests (176.gcc,187.facerec,189.lucas) work with 3.5, but did not
run at all with 3.4.1, so that is clearly an improvement. Two tests
(186.crafty and 200.sixtrack) that did work with 3.4.1 no longer work
with 3.5 -- that is clearly a degradation. Most of the results are
within 5% of the 3.4.1 results (nine better, six worse). The outliers
are 252.eon (15% improved), 168.wupwise (10% degraded), 177.mesa (7%
improved), and 301.apsi (15% improved).
186.crafty works for me with -O3 -mcpu=G5 at least did two days ago.
I also see a performance regression in perl also which was caused by
the same patch
which also caused the regression on x86.
Thanks,
Andrew Pinski