From: Tom Tromey <tromey@redhat.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: Dan Nicolaescu <dann@ics.uci.edu>,
Emacs development discussions <emacs-devel@gnu.org>
Subject: Re: indirect threading for bytecode interpreter
Date: Mon, 21 Sep 2009 08:27:01 -0600 [thread overview]
Message-ID: <m3eiq04bm2.fsf@fleche.redhat.com> (raw)
In-Reply-To: <jwvtyywzblj.fsf-monnier+emacs@gnu.org> (Stefan Monnier's message of "Mon, 21 Sep 2009 09:13:10 -0400")
>>>>> "Stefan" == Stefan Monnier <monnier@iro.umontreal.ca> writes:
>> I've profiled (using oprofile) Emacs running this a few times; typical
>> results show mark_object at 10-12% of runtime. It is probably pretty
>> easy to reproduce this with a variety of elisp programs.
Stefan> So no matter how hard we try, we won't gain more than about 10% speed-up
Stefan> trying to optimize the GC. Doesn't sound like a great motivator.
Yeah, though it does vary by workload.
re_match_2_internal is actually the top time user in my profiles, using
17-25% of the runtime.
Tom
prev parent reply other threads:[~2009-09-21 14:27 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-17 16:46 indirect threading for bytecode interpreter Tom Tromey
2009-09-17 18:21 ` Stefan Monnier
2009-09-17 19:20 ` Helmut Eller
2009-09-17 19:38 ` Tom Tromey
2009-09-17 20:41 ` Helmut Eller
2009-09-17 21:06 ` Tom Tromey
2009-09-17 22:48 ` Helmut Eller
2009-09-18 0:59 ` Stefan Monnier
2009-09-18 2:59 ` Tom Tromey
2009-09-17 20:43 ` Stefan Monnier
2009-09-17 20:57 ` Tom Tromey
2009-09-18 19:15 ` Dan Nicolaescu
2009-09-18 20:26 ` Tom Tromey
2009-09-21 1:58 ` Dan Nicolaescu
2009-09-21 3:17 ` Tom Tromey
2009-09-21 13:13 ` Stefan Monnier
2009-09-21 13:21 ` David Kastrup
2009-09-21 13:47 ` joakim
2009-09-21 14:46 ` Stefan Monnier
2009-09-21 14:27 ` Tom Tromey [this message]
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