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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: guix-devel-bounces+larch=yhetil.org@gnu.org X-Migadu-Country: US X-Migadu-Flow: FLOW_IN ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1688365179; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post:dkim-signature; bh=C6OfPkHomSm6t2CoHkLdPOkSgKzDJwRQ/H7T7bm88nc=; b=YxjoIzioyWl56rg/WriSswCJVif+RFLNyAJSAByXg2px9qc0zSWBkVVmYY7uQArgDQRiZn b+hjw1GZd7VZKfmdf/v0C/0ycXCwGvUKU9nEYjctKkEk5pUGclsvpw0fFhihn01FNQl+eB CNe7EMtu/cTOFHZD4tBdi2vJRJT563TWl6SlpwFqdWm5d5jluz9agNb/yGDPHSLsSp7hE4 VRMhRoUFqYbYtYu5tVGYWMYUESRU9K+oxF1MK3z3l2+avWcNoIWnuEtlrEwMuOai4fcRlo WyLwKeIgkdKTvnnMKPjTi0nJX3I3D4sS86VWMZ/j4EgEx/H3HGWHCYOzkgG03w== ARC-Authentication-Results: i=2; aspmx1.migadu.com; dkim=pass header.d=elephly.net header.s=zoho header.b=bEhhA8ac; dmarc=none; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org"; arc=pass ("zohomail.com:s=zohoarc:i=1") ARC-Seal: i=2; s=key1; d=yhetil.org; t=1688365179; a=rsa-sha256; cv=pass; b=pkJmXrhUugrzFAawK/STU5miG/rzVjRTFYmHmgTveqCIsemAgDo9yo5p3YC3yyKRX0zeUJ WYb5LvfUrF80xXbh/ZkopJ+eLh1UNIG077+XbaAVuSdyhFRwNMrDKi6sCBbwi1VN7EkhBn DRxNSXgcDctsrLOZftMjwfdbAbB4/tb+UtjwTRKiTNZs1bCVrBPPiCEthgdNhA61K3Qslb drYxt7N52mQOAaqHhZ1OwkVPBzT0Y8Ma3Hvo9Q6JMPI80Y4PSsm5tSAVWFrPQJdDW0fnfi TofBW/thm5RAzhQfWb1GcnBKwn0zK1OEEmCA2LFgv5YVbQXv86DKStJKkuM5eA== X-Migadu-Scanner: scn1.migadu.com X-Migadu-Spam-Score: -4.76 Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=elephly.net header.s=zoho header.b=bEhhA8ac; dmarc=none; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org"; arc=pass ("zohomail.com:s=zohoarc:i=1") X-Migadu-Queue-Id: 78D3916460 X-Spam-Score: -4.76 X-TUID: O226FnHA+1iK Wilko Meyer writes: > Ricardo Wurmus writes: >> I=E2=80=99ve 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. --=20 Ricardo