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IRA performance regressions on PPC
- From: Luis Machado <luisgpm at linux dot vnet dot ibm dot com>
- To: gcc at gcc dot gnu dot org
- Cc: Vladimir Makarov <vmakarov at redhat dot com>
- Date: Fri, 05 Sep 2008 10:59:35 -0300
- Subject: IRA performance regressions on PPC
- Reply-to: luisgpm at linux dot vnet dot ibm dot com
Hi Vladimir,
I was just going through some benchmarks on PPC and noticed that your
patch from 08/26 (http://gcc.gnu.org/ml/gcc-cvs/2008-08/msg01152.html)
caused a significant regression on both facerec (~17%) and applu (~4%)
for 64-bit PPC.
There are other degradations that i'm still working on isolating the
cause, just to give you a heads up on the problem.
Luis