unofficial mirror of guix-devel@gnu.org 
 help / color / mirror / code / Atom feed
From: Tobias Geerinckx-Rice <me@tobias.gr>
To: Mathieu Othacehe <m.othacehe@gmail.com>
Cc: Guix-devel <guix-devel@gnu.org>
Subject: Re: 02/02: image: Disable compression for ISO images.
Date: Mon, 27 Apr 2020 17:13:18 +0200	[thread overview]
Message-ID: <87blndt116.fsf@nckx> (raw)
In-Reply-To: <20200427140926.3B6CF20B7A@vcs0.savannah.gnu.org>

[-- Attachment #1: Type: text/plain, Size: 487 bytes --]

Mathieu,

guix-commits@gnu.org 写道:
> +   ;; XXX: Temporarily disable compression to speed-up the 
> tests.
> +   (compression? #f)))

Interesting!  What kind of improvement do you see, roughly?

When I added zlib compression I was surprised to learn that here 
it made no significant difference in wall clock time (less than a 
minute; 5% or so) or CPU time.  The disks they spin and CPU she is 
fast, but still I would have noticed a spike.

Kind regards,

T G-R

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 227 bytes --]

       reply	other threads:[~2020-04-27 15:13 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200427140924.28752.28126@vcs0.savannah.gnu.org>
     [not found] ` <20200427140926.3B6CF20B7A@vcs0.savannah.gnu.org>
2020-04-27 15:13   ` Tobias Geerinckx-Rice [this message]
2020-04-27 16:00     ` 02/02: image: Disable compression for ISO images Mathieu Othacehe
2020-04-28  9:37       ` Bengt Richter

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=87blndt116.fsf@nckx \
    --to=me@tobias.gr \
    --cc=guix-devel@gnu.org \
    --cc=m.othacehe@gmail.com \
    /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).