From: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: emacs-devel@gnu.org
Subject: Re: Changes to th new GC percentage feature
Date: Sun, 31 Jul 2005 11:28:32 -0400 [thread overview]
Message-ID: <87k6j70zix.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <E1Dyi6q-0002Qg-I5@fencepost.gnu.org> (Richard M. Stallman's message of "Fri, 29 Jul 2005 23:34:00 -0400")
> what exactly is it trying to do? The only changes I can notice are:
> - the bytecode interpreter and the eval and funcall functions now
> check two values rather than one, thus being slower.
> - read_char tests gc_cons_threshold.
> There is code that temporarily changes gc_cons_threshold to prevent
> GC from occurring. It was broken and caused an infinite recursion.
I thought I had carefully updated it to change
gc_cons_combined_threshold instead.
> I think this is the clean fix.
OK.
> The slowdown is surely insignificant.
I'd expect it to be measurable since it's executed at the very least least
once per iteration of any loop.
Stefan
prev parent reply other threads:[~2005-07-31 15:28 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-29 18:51 Changes to th new GC percentage feature Stefan Monnier
2005-07-30 3:34 ` Richard M. Stallman
2005-07-31 15:28 ` Stefan Monnier [this message]
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