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From: "Ludovic Courtès" <ludo@gnu.org>
To: Julien Lepiller <julien@lepiller.eu>
Cc: 39728@debbugs.gnu.org, Pierre Neidhardt <mail@ambrevar.xyz>,
	zimoun <zimon.toutoune@gmail.com>
Subject: [bug#39728] [PATCH v2] Allow parallel downloads and builds
Date: Thu, 25 Nov 2021 13:53:25 +0100	[thread overview]
Message-ID: <87ilwge6re.fsf@gnu.org> (raw)
In-Reply-To: <20211121234941.32724b68@tachikoma.lepiller.eu> (Julien Lepiller's message of "Sun, 21 Nov 2021 23:49:41 +0100")

Hello,

Julien Lepiller <julien@lepiller.eu> skribis:

> After so long, I managed to find the time to go over the comments and
> improve my patches. I tested the new daemon for a bit, and it's working
> as expected so far :D

On a recent daemon, have you seen cases where having multiple downloads
in parallel speeds things up?

The analysis in
<https://guix.gnu.org/en/blog/2021/getting-bytes-to-disk-more-quickly/>
suggests that at the time you first submitted this patch, substitution
speed (which is different from raw download speed) was often CPU-bound.
This is no longer the case, meaning that downloads should now be
network-bound or almost.

Thanks,
Ludo’.




  reply	other threads:[~2021-11-25 12:54 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-21 22:53 [bug#39728] [PATCH] Allow parallel downloads and builds Julien Lepiller
2020-02-24 21:23 ` Ludovic Courtès
2020-02-25 15:21   ` zimoun
2020-02-25 15:39     ` Julien Lepiller
2020-02-26 10:36       ` Pierre Neidhardt
2021-11-21 22:49         ` [bug#39728] [PATCH v2] " Julien Lepiller
2021-11-25 12:53           ` Ludovic Courtès [this message]
2021-11-25 13:01             ` Julien Lepiller
2021-11-26 10:16               ` Ludovic Courtès
2021-07-14  2:49 ` [bug#39728] [PATCH] " Maxim Cournoyer

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