From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@gnu.org>
Subject: Re: Parallel downloads
Date: Sun, 03 Nov 2019 15:48:53 +0100
Message-ID: <87k18h3tii.fsf@gnu.org>
References: <87pnid3qdh.fsf@ambrevar.xyz> <87k18kyjlm.fsf@nckx>
 <87wock97ye.fsf@ambrevar.xyz>
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In-Reply-To: <87wock97ye.fsf@ambrevar.xyz> (Pierre Neidhardt's message of
 "Thu, 31 Oct 2019 17:48:57 +0100")
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To: Pierre Neidhardt <mail@ambrevar.xyz>
Cc: guix-devel@gnu.org

Hi Pierre,

Pierre Neidhardt <mail@ambrevar.xyz> skribis:

> I'm not sure I understand: if I run
>
> guix build -M 4 vlc
>
> download progress bars are updated one at a time.  Or am I mistaken?

With -M4 you could potentially have 4 substitutions (downloads) going on
in parallel.

Tobias is right: the daemon works in terms of =E2=80=9Cjobs=E2=80=9D, where=
 a job can be
either a build or a substitution (a download).  =E2=80=98--max-jobs=E2=80=
=99 controls
that.

Ludo=E2=80=99.