From: Andrey Belevantsev <abel@ispras.ru>
To: "\"Seongbae Park (박성배, 朴成培)\"" <seongbae.park@gmail.com>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>,
Jim Wilson <wilson@tuliptree.org>,
Vladimir Makarov <vmakarov@redhat.com>
Subject: Re: [RFC] Selective scheduling pass
Date: Thu, 05 Jun 2008 13:49:00 -0000 [thread overview]
Message-ID: <4847ECBE.7080304@ispras.ru> (raw)
In-Reply-To: <ab3a61990806042045n745d60d4l60577570ff870dd3@mail.gmail.com>
Seongbae Park (박성배, 朴æˆåŸ¹) wrote:
> Presumably this is with any profile feedback ?
> If so, numbers look ok.
You probably mean that the numbers are without profile feedback. This
is true.
> Have you tried it with profile feedback ?
> Selective scheduling (and most other aggressive global scheduling algorithms)
> can benefit quite a bit from profile feedback,
> and tuning can be quite different for with and without profile feedback.
No, we haven't tried that. I've got the impression that profile
optimizations are not of big importance to GCC developers, so we focused
on tuning without profile feedback. Nevertheless, we'll try SPEC with
profiling feedback tonight. I will be happy to discuss how the
scheduler can be tuned to use the profiling information -- will you
attend the summit btw?
Andrey
next prev parent reply other threads:[~2008-06-05 13:49 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-03 14:24 Andrey Belevantsev
2008-06-03 14:26 ` Selective scheduling pass - middle end changes [1/1] Andrey Belevantsev
2008-06-11 1:04 ` Ian Lance Taylor
2008-06-11 13:40 ` Andrey Belevantsev
2008-06-11 14:30 ` Ian Lance Taylor
2008-06-27 13:10 ` Andrey Belevantsev
2008-06-30 16:16 ` Ian Lance Taylor
2008-07-08 14:54 ` Andrey Belevantsev
2008-07-08 15:29 ` Ian Lance Taylor
2008-08-22 15:55 ` Andrey Belevantsev
2008-06-03 14:27 ` Selective scheduling pass - scheduler changes [2/3] Andrey Belevantsev
2008-06-03 22:03 ` Vladimir Makarov
2008-08-22 15:52 ` Andrey Belevantsev
2008-06-03 14:28 ` Selective scheduling pass - target changes (ia64 & rs6000) [3/3] Andrey Belevantsev
2008-08-22 16:04 ` Andrey Belevantsev
2008-08-29 13:41 ` [Ping] [GWP/ia64/rs6000 maintainer needed] " Andrey Belevantsev
2008-08-29 15:01 ` Mark Mitchell
2008-09-25 22:39 ` sje
2008-09-26 14:57 ` Andrey Belevantsev
2008-10-03 22:22 ` Steve Ellcey
2008-10-06 17:26 ` Andrey Belevantsev
2008-06-03 22:03 ` [RFC] Selective scheduling pass Vladimir Makarov
2008-06-04 16:55 ` Mark Mitchell
2008-06-04 20:50 ` Andrey Belevantsev
2008-06-05 3:45 ` Seongbae Park (박성배, 朴成培)
2008-06-05 13:49 ` Andrey Belevantsev [this message]
2008-06-05 6:44 Steven Bosscher
2008-06-05 18:29 ` Andrey Belevantsev
2008-06-05 23:38 ` Steven Bosscher
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