From: Leo Famulari <leo@famulari.name>
To: 26316-done@debbugs.gnu.org
Subject: bug#26316: Enable threaded compression of source tarballs
Date: Sat, 15 Apr 2017 18:35:58 -0400 [thread overview]
Message-ID: <20170415223558.GA20274@jasmine> (raw)
In-Reply-To: <20170330221715.GA10357@jasmine>
[-- Attachment #1: Type: text/plain, Size: 971 bytes --]
On Thu, Mar 30, 2017 at 06:17:15PM -0400, Leo Famulari wrote:
> This patch enables multi-threaded xz compression in the repacking stage
> of building source tarballs.
>
> With it applied, I get a ~2.2x speedup building the source of
> linux-libre with 4 threads, compared to 1 thread.
>
> Specifically, with the upstream linux-libre tarball in the page cache,
> `guix build -S linux-libre` took ~366 seconds using a single thread for
> xz, and ~164 seconds using 4 threads.
> From 78547a09e50440c649c3d28d7691f32fdd47cc25 Mon Sep 17 00:00:00 2001
> From: Leo Famulari <leo@famulari.name>
> Date: Thu, 30 Mar 2017 03:10:48 -0400
> Subject: [PATCH] packages: Enable threaded compression of source tarballs.
>
> This provides a ~2x speedup when using 4 threads.
>
> * guix/packages.scm (patch-and-repack)[build]: Invoke xz with
> '--threads=0' when re-packing tarballs.
I pushed this to core-updates as
c8a3dea847bb9f87fa1876d0c6c3356d6226f121.
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
prev parent reply other threads:[~2017-04-15 22:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-30 22:17 bug#26316: Enable threaded compression of source tarballs Leo Famulari
2017-03-31 18:15 ` Kei Kebreau
2017-03-31 23:04 ` Leo Famulari
2017-03-31 23:56 ` Kei Kebreau
2017-04-01 0:15 ` Leo Famulari
2017-04-15 22:35 ` Leo Famulari [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://guix.gnu.org/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170415223558.GA20274@jasmine \
--to=leo@famulari.name \
--cc=26316-done@debbugs.gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/guix.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).