GNU bug report logs - #17806
24.4.50; Branch emacs-24 fails to beuild on Debian

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Package: emacs;

Reported by: Manoj Srivastava <srivasta <at> golden-gryphon.com>

Date: Wed, 18 Jun 2014 23:39:01 UTC

Severity: normal

Found in version 24.4.50

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: Manoj Srivastava <srivasta <at> golden-gryphon.com>, Glenn Morris <rgm <at> gnu.org>, Dmitry Antipov <dmantipov <at> yandex.ru>, 17806 <at> debbugs.gnu.org
Subject: bug#17806: 24.4.50; Branch emacs-24 fails to beuild on Debian
Date: Fri, 20 Jun 2014 16:55:33 -0700

Stefan Monnier wrote:
> I generally use byte-compilation
> of Emacs's files as my own benchmark.

I tried that benchmark (i.e., remove all *.elc files and then time 
'make', on emacs-24 bzr 117270, Fedora 20 x86-64, GCC 4.9.0), and if I 
take the sum of user+system CPU time the version with link time 
optimization was 0.12% faster.  I don't know whether that's within the 
margin of error for measurement.  So it could be that LTO is a 
performance win, albeit a tiny one, for that sort of thing.
This bug report was last modified 11 years and 47 days ago.

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