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From: Paul Eggert <eggert@cs.ucla.edu>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: Manoj Srivastava <srivasta@golden-gryphon.com>,
	Dmitry Antipov <dmantipov@yandex.ru>,
	17806@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	[thread overview]
Message-ID: <53A4C9F5.108@cs.ucla.edu> (raw)
In-Reply-To: <jwvoaxnmgx8.fsf-monnier+emacsbugs@gnu.org>

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.





  reply	other threads:[~2014-06-20 23:55 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-18 22:37 bug#17806: 24.4.50; Branch emacs-24 fails to beuild on Debian Manoj Srivastava
2014-06-19  2:56 ` Eli Zaretskii
2014-06-19  3:41   ` Glenn Morris
2014-06-19  6:35     ` Manoj Srivastava
2014-06-19  8:42       ` Dmitry Antipov
2014-06-19 17:22         ` Manoj Srivastava
2014-06-19 18:39           ` Sven Joachim
2014-06-20  6:17 ` Paul Eggert
2014-06-20  7:20   ` Eli Zaretskii
2014-06-20  7:56     ` Paul Eggert
2014-06-20  8:15       ` Eli Zaretskii
2014-06-20 17:15   ` Glenn Morris
2014-06-20 19:48     ` Paul Eggert
2014-06-20 21:06       ` Stefan Monnier
2014-06-20 23:55         ` Paul Eggert [this message]
2014-06-21 12:54           ` Stefan Monnier
2014-06-21  3:46         ` Dmitry Antipov
2014-06-21 19:58           ` Glenn Morris
2014-06-24 14:56     ` Dmitry Antipov
2014-06-24 16:27       ` Paul Eggert
2014-06-24 16:39         ` Eli Zaretskii

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