From: ludo@gnu.org (Ludovic Courtès)
To: Mark H Weaver <mhw@netris.org>
Cc: guix-devel@gnu.org
Subject: Optimizing ‘guix package’
Date: Wed, 02 Apr 2014 16:14:30 +0200 [thread overview]
Message-ID: <874n2bizsp.fsf_-_@gnu.org> (raw)
In-Reply-To: <87txamkbde.fsf@yeeloong.lan> (Mark H. Weaver's message of "Tue, 25 Mar 2014 03:04:13 -0400")
Mark H Weaver <mhw@netris.org> skribis:
> * Although I can now run union-build in 2 minutes, another full minute
> is spent in 'display-search-paths',
Commit 27c6845 optimizes that (50%!).
The problem is that currently this is an inherently inefficient
operation: search path information is not stored in the manifest, so
‘search-path-environment-variables’ has to look up the package
corresponding to each manifest entry to find out what the search path
variables are. That involves traversing the module tree, which does a
lot of I/O (this is OKish on an SSD, but much less on a real hard disk.)
Perhaps eventually we could store search path info in manifest entries.
Ludo’.
next prev parent reply other threads:[~2014-04-02 14:14 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-12 7:12 Problems with handicapped 'bash' from glibc package Mark H Weaver
2014-02-12 13:14 ` Ludovic Courtès
2014-02-12 17:39 ` Mark H Weaver
2014-02-12 19:31 ` Andreas Enge
2014-02-12 20:33 ` Ludovic Courtès
2014-02-12 21:33 ` Mark H Weaver
2014-02-13 9:14 ` Andreas Enge
2014-03-23 16:19 ` Ludovic Courtès
2014-03-23 20:19 ` Mark H Weaver
2014-03-23 20:27 ` Ludovic Courtès
2014-03-24 3:31 ` Mark H Weaver
2014-03-28 13:48 ` Ludovic Courtès
2014-03-24 3:55 ` Optimizing union.scm Mark H Weaver
2014-03-24 13:45 ` Ludovic Courtès
2014-03-25 7:04 ` Mark H Weaver
2014-03-25 17:18 ` Ludovic Courtès
2014-03-25 22:30 ` Mark H Weaver
2014-03-25 22:58 ` Ludovic Courtès
2014-03-27 7:09 ` Mark H Weaver
2014-03-27 9:57 ` Ludovic Courtès
2014-04-02 14:14 ` Ludovic Courtès [this message]
2014-04-02 16:58 ` Optimizing ‘guix package’ Mark H Weaver
2014-03-26 23:29 ` Problems with handicapped 'bash' from glibc package Ludovic Courtès
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