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From: Efraim Flashner <efraim@flashner.co.il>
To: "Félix Baylac Jacqué" <felix@alternativebit.fr>
Cc: guix-devel@gnu.org
Subject: Re: How long does it take to run the full rustc bootstrap chain?
Date: Wed, 19 Oct 2022 22:52:07 +0300	[thread overview]
Message-ID: <Y1BVZ71UBdjp0MbN@3900XT> (raw)
In-Reply-To: <87k0514k3g.fsf@alternativebit.fr>

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On Sat, Oct 15, 2022 at 09:33:23AM +0200, Félix Baylac Jacqué wrote:
> Hey Guix,
> 
> I'd be curious to know how long it takes to run the full rustc bootstrap
> chain on the Guix build farm. I'm sadly not sure how to approach this
> problem.
> 
> Is there a way to extract this information from Cuirass or the Guix data
> service?

If I were to go about it I would try to get the build log from each
package:
guix build --no-grafts -e '(@@ (gnu packages rust) rust-bootstrap)' \
    --log-file

and then I'd add up the build and test phases to get a rough estimate.

For an approximate answer, the build farm runs 4 builds per machine,
with 8 cores per build (all of this is in the guix-maintenance repo I
think). When I build from mrustc to rust-1.60 on my machine with 24
cores it currently takes about 2 hours for rust-bootstrap (1.54) and
then about 30-45 minutes each other version.

I don't remember the bug number offhand, but there's work being done to
speed up the process. The last time I ran though the test build I built
from rust-1.55 to librsvg in 171 minutes.

-- 
Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
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  reply	other threads:[~2022-10-19 20:20 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-15  7:33 How long does it take to run the full rustc bootstrap chain? Félix Baylac Jacqué
2022-10-19 19:52 ` Efraim Flashner [this message]
2022-10-20  9:59 ` Ludovic Courtès
2022-10-20 20:11   ` Efraim Flashner
2022-10-22  8:57     ` Félix Baylac Jacqué
2022-10-22 13:48 ` Maxim Cournoyer
2022-10-26 19:37   ` bokr
2022-10-27 14:35     ` Maxim Cournoyer
2022-10-28 12:00       ` Has guix system ever run a hardware survey? Joshua Branson
2022-10-31 19:02       ` How long does it take to run the full rustc bootstrap chain? Bengt Richter
2022-11-01 12:49         ` Maxim Cournoyer
2022-11-06  9:08     ` Efraim Flashner

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