On 1/24/22 01:30, Robert-André Mauchin wrote:
Hi,
So I have an annoying bug that started near the beginnings of F35.
My papirus-icon-theme became very slow to install:
https://bugzilla.redhat.com/show_bug.cgi?id=2029709#c18
During the installation, all the files are copied, then renamed by rpm
(no idea why it works like this).
It works fast in a Mock chroot but incredibly slow on bare metal.
I've done a small test of moving files:
[root@cassini icons]# mkdir test
[root@cassini icons]# for (( i = 0; i < 10000; i++ )) do > test/file_$i;
done
[root@cassini icons]# cd test
On host:
time $(for f in *; do mv "$f" "${f%}.txt"; done)
real 2m3,500s
user 0m3,966s
sys 2m0,431s
In nspawn container:
<mock-chroot> sh-5.1# time $(for f in *; do mv "$f" "${f%}.txt"; done)
real 0m6.702s
user 0m4.237s
sys 0m3.344s
Since papirus-icon-theme contains more than 100,000 (small) files, it is
a problem. One minute of waiting is ok, 20 mn is not.
What can cause this? I read that nspawn virtualizes the file system,
could it be file system related on the host? (I use btrfs btw)
Any input welcome!
Best regards,
Robert-André
Thanks to Panu, it has been determined that the install process of
papirus-icon-theme spends most of its time labeling the 100,000 files.
Installing the rpm with rpm -i --nocontexts makes it happen in a
reasonable time.
Is there a way to bypass this step from within the SPEC itself?
It started to happen around F35, do you think I should try to raise a
bug with SELinux? I don't know how to diagnose this better.
Any input appreciated.
Best regards,
Robert-André
_______________________________________________
devel mailing list -- devel@lists.fedoraproject.org
To unsubscribe send an email to devel-le...@lists.fedoraproject.org
Fedora Code of Conduct:
https://docs.fedoraproject.org/en-US/project/code-of-conduct/
List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
List Archives:
https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
Do not reply to spam on the list, report it:
https://pagure.io/fedora-infrastructure
