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Re: Feedback-driven optimization
- From: dewar at gnat dot com (Robert Dewar)
- To: dewar at gnat dot com, rmyers1400 at attbi dot com
- Cc: gcc at gcc dot gnu dot org, jh at suse dot cz, rth at redhat dot com
- Date: Sun, 23 Feb 2003 21:48:33 -0500 (EST)
- Subject: Re: Feedback-driven optimization
> There's alot to read, and I've scanned a fair bit of it. No one seems
> to have tried anything as ambitious as what I have in mind, which, is
> given all the preconceptions and experience available, come up with a
> best expected strategy. There are fairly straightforward recipes for
> doing this, but I don't think anybody has actually tried them. What
> people *have* done is to use profiling to identify areas for increased
> scrutiny, but with only limited success.
That's very far from true, and indicates that you should do a bit more "scanning".
Have you read for example the basic work on trace scheduling (and in particular
the Multiflow technology -- there was a reason that Intel paid millions of dollars
for access to this technology!)