On Sun, 20 Nov 2022 at 21:18, Neal Gompa <ngomp...@gmail.com> wrote: > Hey all, > > Lately, I've been using the COPR ARM builders a fair bit: I've been > working on Fedora Asahi stuff with Davide Cavalca for the past several > months, and I've noticed that builds in COPR are easily at least 2x > slower than their equivalent builds in Koji, most of the time > considerably worse. > > For a concrete example: I've been building kernel-asahi in > ngompa/fedora-asahi and ngompa/fedora-asahi-dev COPRs for some time > now, and each kernel build is basically 3 hours. Most recently, I > built a kernel based on 6.1-rc5 > ( > https://copr.fedorainfracloud.org/coprs/ngompa/fedora-asahi-dev/build/5041891/ > ) > that took 3 hours. The equivalent build in Koji > (https://koji.fedoraproject.org/koji/taskinfo?taskID=94172035) took > less than 1.25 hours. > > I tried earlier today to build QtWebEngine in COPR for testing a fix, > and it couldn't complete in the 5 hour time limit it has by default. I > eventually did a build locally (which took about an hour to build) and > validated it before pushing it to Koji > (https://koji.fedoraproject.org/koji/taskinfo?taskID=94372924), which > took a little under 3.15 hours. > > I thought we had access to super-fast Graviton-based builders for > COPR. Our builds should be *flying* compared to Koji or my local > resources. So what's going on? > > I have been noticing a sizeable slowdown in builds on Graviton in other places unless the hardware is a dedicated hardware instance. My guess is that ARM is no longer niche and a lot of other teams are using them which means we are getting 'swapped in and out' in the cloud with everyone else.
-- Stephen J Smoogen. Let us be kind to one another, for most of us are fighting a hard battle. -- Ian MacClaren
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