From: "Miroslav Suchý" <msuchy(a)redhat.com>
To: "Development discussions related to Fedora"
<devel(a)lists.fedoraproject.org>
Sent: Wednesday, June 13, 2018 9:07:18 AM
Subject: Multi-arch support in Mock
Hi,
I just pushed into updates-testing new release of Mock (1.4.11). It has nice
new feature:
$ sudo dnf install qemu-user-static # weak dependency
$ mock -r fedora-28-ppc64le --forcearch ppc64le shell
This will give you Fedora shell on different architecture. Emulated by QEMU.
And of course you can build packages for
the different architectures this way.
You can do this for any architecture: aarch64, armhfp, ppc64, ppc64le, s390x.
People are asking me how much slower it is. Here are some data:
$ time mock -r fedora-28-x86_64 /tmp/tito/mock-1.4.11-1.fc28.src.rpm
real 0m56,341s
user 0m46,238s
sys 0m6,027s
$ time mock -r fedora-28-ppc64le --forcearch=ppc64le
/tmp/tito/mock-1.4.11-1.fc28.src.rpm
real 11m9,576s
user 10m40,182s
sys 0m29,916s
$ time mock -r fedora-28-x86_64 --shell 'echo Ahoy'
real 0m1,199s
user 0m0,759s
sys 0m0,253s
$ time mock -r fedora-28-ppc64le --forcearch=ppc64le --shell 'echo Ahoy'
real 0m1,726s
user 0m1,228s
sys 0m0,319s
For full release notes see:
https://github.com/rpm-software-management/mock/wiki/Release-Notes-1.4.11
Miroslav
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This is really awesome! Finally an easy way to test issues on alternative arch's.
Thanks for that!
--
Regards,
Charalampos Stratakis
Software Engineer
Python Maintenance Team, Red Hat