From: Dan Nicolaescu <dann@ics.uci.edu>
To: Tom Tromey <tromey@redhat.com>
Cc: Emacs development discussions <emacs-devel@gnu.org>
Subject: Re: indirect threading for bytecode interpreter
Date: Sun, 20 Sep 2009 18:58:53 -0700 (PDT) [thread overview]
Message-ID: <200909210158.n8L1wr55000349@godzilla.ics.uci.edu> (raw)
In-Reply-To: m3ab0sc847.fsf@fleche.redhat.com
Tom Tromey <tromey@redhat.com> writes:
> >>>>> "Dan" == Dan Nicolaescu <dann@ics.uci.edu> writes:
>
> Dan> The overhead of mark_object should be lower in that version (it's
> Dan> higher in 23 because of the way charsets are represented).
>
> I would be interested if you, or anybody, has ideas on how to improve
> the performance of mark_object. That is, without a whole GC rewrite :-)
Not sure if much can be done about mark_object itself, the issue is
the amount of things that need to be marked.
Making the GC generational might help. The first GC after startup does
200K mark_object calls, so if most of those don't need to be scanned for
each GC, then that might help.
If you have a testcase that shows GC problems, maybe posting the test
case would enticemore people look into it...
next prev parent reply other threads:[~2009-09-21 1:58 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 [this message]
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
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