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Re: 15 seconds to fontify index
From: |
James Cloos |
Subject: |
Re: 15 seconds to fontify index |
Date: |
Tue, 03 Apr 2007 12:33:38 -0400 |
User-agent: |
Gnus/5.110006 (No Gnus v0.6) Emacs/23.0.0 (gnu/linux) |
>>>>> "Miles" == Miles Bader <address@hidden> writes:
Miles> $ time emacs -Q -nw --eval '(info "(elisp)Index")' -kill
I tried that a couple of times in a row on my 1GHz P3M laptop.
With a cold cache it took:
real 0m11.614s
user 0m2.568s
sys 0m0.205s
but with a hot cache that drops down to:
real 0m2.794s
user 0m2.542s
sys 0m0.157s
So it seems a huge part of it is io wait.
NB that my info dir is compressed, so that time includes gunzip(1) time.
In doing this test, I discovered that my latest updates did not remove
the old copies of the emacs and elisp info pages. The latest installs
I have (by way of the Gentoo ebuild) use bzip2(1) rather than gzip(1)
to compress the files. Removing the old, thus forcing the new, bumps
the time up to just under 10 seconds of user time, or about 3.83 times
as long.
So, perhaps part of the slowdown is that distributors are compressing
the info pages. Especially if with bzip2(1).
-JimC
--
James Cloos <address@hidden> OpenPGP: 1024D/ED7DAEA6
- Re: 15 seconds to fontify index, (continued)
Re: 15 seconds to fontify index, Alan Mackenzie, 2007/04/01
Re: 15 seconds to fontify index, Eli Zaretskii, 2007/04/02
Re: 15 seconds to fontify index, Richard Stallman, 2007/04/03
Re: 15 seconds to fontify index, Kevin Ryde, 2007/04/02