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From: ludo@gnu.org (Ludovic Courtès)
To: Marius Bakke <mbakke@fastmail.com>
Cc: 32196@debbugs.gnu.org
Subject: [bug#32196] [PATCH core-updates] packages, scripts, utils: Disable threaded xz compression.
Date: Thu, 19 Jul 2018 11:33:56 +0200	[thread overview]
Message-ID: <87sh4fwovv.fsf@gnu.org> (raw)
In-Reply-To: <20180718121028.27939-1-mbakke@fastmail.com> (Marius Bakke's message of "Wed, 18 Jul 2018 14:10:28 +0200")

Hi Marius,

Marius Bakke <mbakke@fastmail.com> skribis:

> Archives produces by "xz --threads" are not reproducible: they depend on the
> number of cores used for compressing.  See <https://bugs.gnu.org/31015>.
>
> * guix/packages.scm (patch-and-repack): Explicitly use 1 thread for compression.
> * guix/scripts/pack.scm (%compressors, bootstrap-xz): Likewise.
> * guix/utils.scm (decompressed-port, compressed-port, compressed-output-port):
> Likewise.

I hadn’t noticed -T0 had made it to ‘master’.

I’d suggest removing 63102406f22412bb922de5549deb89d3594a38c0 on master
(no rebuild needed), with a reference to #31015 in the commit log.  And
then similarly reverting c8a3dea847bb9f87fa1876d0c6c3356d6226f121 on
‘core-updates’.

Sounds good?

If we’re concerned about speed, perhaps we should switch to lzip, which
I think has better behavior.

Thanks,
Ludo’.

  reply	other threads:[~2018-07-19  9:35 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-18 12:10 [bug#32196] [PATCH core-updates] packages, scripts, utils: Disable threaded xz compression Marius Bakke
2018-07-19  9:33 ` Ludovic Courtès [this message]
2018-07-22 16:06   ` bug#32196: " Marius Bakke

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