news: Add news entry for 'guix pack -RR' and Fakechroot.

* etc/news.scm: Add entry.
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Ludovic Courtès 2020-05-14 17:18:43 +02:00
parent 6456232164
commit febd1fcfa0
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@ -11,6 +11,28 @@
(channel-news
(version 0)
(entry (commit "6456232164890dbf5aa20394ee24637feb4b7b9e")
(title (en "@command{guix pack -RR} introduces a new execution
engine"))
(body
(en "The @command{guix pack -RR} command allows you to create a
tarball containing @dfn{relocatable binaries}. Until now, those would rely
either on Linux ``unprivileged user namespaces'' or on PRoot, when
unprivileged user namespaces are not supported. However, PRoot introduces
significant overhead for some workloads.
To address that, @command{guix pack -RR} introduces a third option based on an
extension to the GNU run-time linker (ld.so) and on Fakechroot, which incurs
very little overhead. You can select the fastest option when executing a
relocatable binary like this:
@example
GUIX_EXECUTION_ENGINE=performance
export GUIX_EXECUTION_ENGINE
@end example
Run @command{info \"(guix) Invoking guix pack\"} for more information.")))
(entry (commit "88a96c568c47c97d05d883ada5afbc4e1200b10f")
(title (en "New @option{--path} option for @command{guix graph}")
(de "Neue Option @option{--path} für @command{guix graph}"))