On Wed, Jun 05, 2019 at 10:48:32PM -0600, Chris Murphy wrote: > I've filed a bug about this, but I'm not sure what else to test or add > to demonstrate where the problem is coming from. It's some combination > of squashfs + ext4 overhead I'm guessing, but then also the perf > report output on the pid for loop1 shows lzma is the top consumer by a > long shot. > > So it seems like xz has a considerable performance/resource impact here as > well.
Yep, that's reasonable. E.g. on my machine, decompressing code compressed with xz -2 reads the compressed data at ~13MB/s. If the part of the live CD that needs to be read to boot to a graphical environment is on the order of 1GB, just decompressing that is going to take more than a minute of CPU. > https://bugzilla.redhat.com/show_bug.cgi?id=1717728 Zbyszek _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
