From: Leo Famulari <leo@famulari.name>
To: 26225@debbugs.gnu.org, efraim@flashner.co.il
Subject: bug#26225: [PATCH] guix: Compress and decompress xz archives in parallel.
Date: Thu, 30 Mar 2017 18:22:35 -0400 [thread overview]
Message-ID: <20170330222235.GB10357@jasmine> (raw)
In-Reply-To: <5vvaqyii1c.fsf@fencepost.gnu.org>
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Efraim Flashner wrote:
> * guix/scripts/pack.scm (%compressors): Add flag '-T0' when calling "xz".
> * guix/utils.scm (decompressed-port, compressed-port,
> compressed-output-port): Same.
> --- a/guix/utils.scm
> +++ b/guix/utils.scm
> @@ -154,7 +155,7 @@ a symbol such as 'xz."
> (match compression
> ((or #f 'none) (values input '()))
> ('bzip2 (filtered-port `(,%bzip2 "-dc") input))
> - ('xz (filtered-port `(,%xz "-dc") input))
> + ('xz (filtered-port `(,%xz "-dc -T0") input))
> ('gzip (filtered-port `(,%gzip "-dc") input))
> (else (error "unsupported compression scheme" compression))))
Parallel decompression isn't implemented yet, but the extra '-T0' option
doesn't seem to break anything.
The changes LGTM.
I sent a companion patch to <https://bugs.gnu.org/26316> that enables
threaded compression when building source tarballs.
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next parent reply other threads:[~2017-03-30 22:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <E1cr0d6-0004an-8g@eggs.gnu.org>
[not found] ` <5vvaqyii1c.fsf@fencepost.gnu.org>
2017-03-30 22:22 ` Leo Famulari [this message]
2017-03-31 17:56 ` bug#26225: [PATCH] guix: Compress and decompress xz archives in parallel Kei Kebreau
2017-03-31 23:01 ` Leo Famulari
2017-04-01 6:52 ` Marius Bakke
2017-04-02 21:21 ` Leo Famulari
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