From: Andreas Enge <andreas@enge.fr>
To: guix-devel@gnu.org
Subject: Parallel (de-)compression
Date: Wed, 2 Dec 2015 19:45:50 +0100 [thread overview]
Message-ID: <20151202184550.GA5741@debian> (raw)
Hello,
on my relatively slow ARM build machine with relatively fast storage (SSD),
I notice that often there is an xz process taking 100% of CPU, while there
is never more than 20MB/s written to disk. For instance, texlive-texmf
takes a very long time to build and install into the store.
Would it make sense to switch to a parallel (de-)compression tool to leverage
higher numbers of cores? We have pbzip2 already in Guix, which is compatible
with bzip2.
As a negative point, we would increase the size of our packages and also the
bandwidth requirement. So maybe this is not worth it, since we could also
build more packages in parallel. Or are there parallel implementations of xz?
Andreas
next reply other threads:[~2015-12-02 18:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-02 18:45 Andreas Enge [this message]
2015-12-02 18:52 ` Parallel (de-)compression Andreas Enge
2015-12-02 19:18 ` Efraim Flashner
2015-12-04 14:44 ` Ludovic Courtès
2015-12-06 15:31 ` Andreas Enge
2015-12-06 22:21 ` Ludovic Courtès
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=20151202184550.GA5741@debian \
--to=andreas@enge.fr \
--cc=guix-devel@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).