Improving the offline updates user experience
bochecha at fedoraproject.org
Fri Oct 24 10:02:55 UTC 2014
On Fri, 2014-10-24 at 12:00 +0200, Miroslav Suchý wrote:
> I'm not updating daily. I upgraded my machine IIRC 2-3 weeks ago. So lets benchmark it and provide you real data.
> My machine have classic magnetic disk, however in SW RAID1.
> Timing cached reads: 12236 MB in 2.00 seconds = 6124.59 MB/sec
> Timing buffered disk reads: 412 MB in 3.00 seconds = 137.12 MB/sec
> Fedora 21, 16 GB RAM (2GB free), 8 CPU cores, swap available but none used
> I run "dnf upgrade" and I have been offered 853 packages and 1.3 GB to download.
> Download lasted 3mins 20secs.
> Then installation started and since beginning "transaction started" till the end lasted exactly 53 minutes.
> No specific package is blocking the process, dnf was chewing packages one by one in steady pace. Veryfing phase lasted
> ~4 minutes, so it means approximately 3 second per package, which is what I am seeing on screen.
> And this is nothing exceptional. I see similar times across all machines I maintain. When I'm updating box of my mother
> (old EeeBox, updating aprox every 3 months) then the time is usually 3 hours (however ~1 hour is just download phase).
More than anything, doesn't this just shows that we simply push way too
many updates in Fedora?
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