From: Andy Wingo <wingo@pobox.com>
To: Luca Saiu <positron@gnu.org>
Cc: bug-guile@gnu.org
Subject: Re: High run time variance
Date: Thu, 05 Aug 2010 19:43:29 +0200 [thread overview]
Message-ID: <m3sk2t0xby.fsf@unquote.localdomain> (raw)
In-Reply-To: <4C5AE50D.6010104@gnu.org> (Luca Saiu's message of "Thu, 05 Aug 2010 18:21:33 +0200")
On Thu 05 Aug 2010 18:21, Luca Saiu <positron@gnu.org> writes:
> Andy Wingo wrote:
>> The toplevel references to bitvector-set! don't get cached, so the
>> bitvector-set! gets looked up every time, and there is some unfortunate
>> allocation in scm_from_locale_symboln. If you put it in a function,
>> the variable gets cached, and there's no allocation.
>
> So that was a corner case. Sorry for the noise.
Well, arguably it's still a bit stupid to be slow there, so it could be
our bug...
A
--
http://wingolog.org/
prev parent reply other threads:[~2010-08-05 17:43 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-29 16:09 High run time variance Luca Saiu
2010-03-30 9:16 ` Ludovic Courtès
2010-03-30 12:35 ` Luca Saiu
2010-03-30 13:01 ` Ludovic Courtès
2010-03-30 15:05 ` Luca Saiu
2010-08-04 19:51 ` Andy Wingo
2010-08-05 13:42 ` Luca Saiu
2010-08-05 14:45 ` Andy Wingo
2010-08-05 16:21 ` Luca Saiu
2010-08-05 17:43 ` Andy Wingo [this message]
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