From: Paolo Bonzini <bonzini@gnu.org>
To: Xinliang David Li <davidxl@google.com>
Cc: Richard Henderson <rth@redhat.com>, "gcc@gcc.gnu.org" <gcc@gcc.gnu.org>
Subject: Re: [RFC] Remove -freorder-blocks-and-partition
Date: Mon, 25 Jul 2011 11:05:00 -0000 [thread overview]
Message-ID: <4E2D4425.9040104@gnu.org> (raw)
In-Reply-To: <CAAkRFZJHvze3gyd6xxLV3KVeDsgfacA-AV-gL6TkvOFYey4f=g@mail.gmail.com>
On 07/25/2011 06:42 AM, Xinliang David Li wrote:
> FYI the performance impact of this option with SPEC06 (built with
> google_46 compiler and measured on a core2 box). The base line number
> is FDO, and ref number is FDO + reorder_with_partitioning.
>
> xalancbmk improves> 3.5%
> perlbench improves> 1.5%
> dealII and bzip2 degrades about 1.4%.
>
> Note the partitioning scheme is not tuned at all -- there is not even
> a tunable parameter to play with.
Did you check what is pushed down to the cold section in these cases?
Paolo
next prev parent reply other threads:[~2011-07-25 10:23 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-19 21:43 Richard Henderson
2011-07-19 21:56 ` Bernd Schmidt
2011-07-19 22:09 ` Richard Henderson
2011-07-19 23:18 ` Joern Rennecke
2011-07-19 22:28 ` Joern Rennecke
2011-07-19 22:44 ` Richard Henderson
2011-07-25 7:40 ` Xinliang David Li
2011-07-25 11:05 ` Paolo Bonzini [this message]
2011-07-25 18:40 ` Xinliang David Li
2011-07-26 1:29 ` Xinliang David Li
2011-07-26 2:33 ` Joern Rennecke
2011-07-27 6:47 ` Xinliang David Li
2011-07-27 8:12 ` Paolo Bonzini
2011-08-03 21:06 ` Jan Hubicka
2011-08-03 21:46 ` Xinliang David Li
2011-08-04 13:32 ` Jan Hubicka
2011-08-04 13:39 ` Jan Hubicka
2011-08-04 16:03 ` Taras Glek
2011-08-03 20:56 ` Jan Hubicka
2011-08-03 20:50 ` Jan Hubicka
2011-07-19 22:43 Steven Bosscher
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