GNU bug report logs - #57245
29.0.50; M-> in a large XML file (without long lines) is slow

Previous Next

Full log

View this message in rfc822 format

From: Eli Zaretskii <eliz <at> gnu.org>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 57245 <at> debbugs.gnu.org, dgutov <at> yandex.ru
Subject: bug#57245: 29.0.50; M-> in a large XML file (without long lines) is slow
Date: Tue, 16 Aug 2022 21:59:36 +0300

> From: Stefan Monnier <monnier <at> iro.umontreal.ca>
> Cc: Dmitry Gutov <dgutov <at> yandex.ru>,  57245 <at> debbugs.gnu.org
> Date: Tue, 16 Aug 2022 14:40:33 -0400
> 
> > What the above profile doesn't show is that this code creates
> > tons of garbage, so GC is called a lot, and adds its share of
> > slowdown.
> 
> Hmm... I wonder where this might come from.

Run the recipe with a watchpoint on consing_until_gc, and you will
see.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.