From: Ricardo Wurmus <rekado@elephly.net>
To: Wilko Meyer <w@wmeyer.eu>
Cc: Nicolas Graves <ngraves@ngraves.fr>, guix-devel@gnu.org
Subject: Re: Guix / Nix Benchmarks
Date: Mon, 03 Jul 2023 08:17:05 +0200 [thread overview]
Message-ID: <87v8f1tt4y.fsf@elephly.net> (raw)
In-Reply-To: <874jmmarb9.fsf@wmeyer.eu>
Wilko Meyer <w@wmeyer.eu> writes:
> Ricardo Wurmus <rekado@elephly.net> writes:
>> I’ve found download speeds to vary wildly dependent on where you are.
>> From an AWS EC2 instance in Frankfurt we get about 50MiB/s download
>> speeds from ci.guix.gnu.org, whereas some in France get sub 1MiB/s.
>
> So, this could be an ISP related issue, e.g. maybe an issue regarding
> peering capacities? As far as I know there have been historical issues
> in this direction between commerical ISPs (namely DTAG being the one I'm
> aware of) and educational networks such as X-WiN, so (without having any
> deeper knowledge on Guixes situation on this) this could apply here as
> well?
>
> As ci.guix.gnu.org is hosted at AS210482/the Max-Delbrueck-Centrum, I
> would guess that there could be something similar going on causing this,
> e.g. commerical ISP trying to enforce their double payed traffic
> strategies and the educational networks where ci.guix.gnu.org is hosted
> (rightfully) not participating in that/not having direct peering with
> these ISPs ASNs?
Yes, this is our guess. The head node and ~24 nodes of the Berlin build
farm are hosted in the MDC data center, which is hooked up to the
internet via the DFN network IIUC.
--
Ricardo
next prev parent reply other threads:[~2023-07-03 6:19 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-19 12:54 Guix / Nix Benchmarks Nicolas Graves via Development of GNU Guix and the GNU System distribution.
2023-06-19 18:55 ` kiasoc5
2023-06-20 5:24 ` Csepp
2023-06-20 9:14 ` Efraim Flashner
2023-06-20 10:45 ` W. T. Meyer
2023-06-20 14:48 ` Nicolas Graves via Development of GNU Guix and the GNU System distribution.
2023-07-02 20:30 ` Ludovic Courtès
2023-07-02 21:42 ` Ricardo Wurmus
2023-07-02 22:02 ` Wilko Meyer
2023-07-03 6:17 ` Ricardo Wurmus [this message]
2023-08-19 12:11 ` Simon Tournier
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