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Re: "make check-acceptance" takes way too long
From: |
Stefano Brivio |
Subject: |
Re: "make check-acceptance" takes way too long |
Date: |
Tue, 1 Feb 2022 11:27:20 +0100 |
On Tue, 1 Feb 2022 09:06:25 +0000
Daniel P. Berrangé <berrange@redhat.com> wrote:
> On Tue, Feb 01, 2022 at 07:31:39AM +0100, Stefano Brivio wrote:
> > Hi,
> >
> > On Tue, 25 Jan 2022 10:20:11 +0100
> > Gerd Hoffmann <kraxel@redhat.com> wrote:
> >
> > > Hi,
> > >
> > > > IMHO the ideal scenario would be for us to have a kernel, initrd
> > > > containing just busybox tools for the key arch targets we care
> > > > about. Those could be used with direct kernel boot or stuffed
> > > > into a disk iamge. Either way, they would boot in ~1 second,
> > > > even with TCG, and would be able to execute simple shell scripts
> > > > to test a decent amount of QEMU functionality.
> > >
> > > I have some test images based on buildroot which are essentially that.
> > > https://gitlab.com/kraxel/br-kraxel/
> > >
> > > Still a significant download, but much smaller than a full fedora or
> > > ubuntu cloud image and it boots much faster too. Not down to only one
> > > second though.
> >
> > I'm not sure you can recycle something from it, but my (ugly) approach
> > to make this fast (for a different purpose -- I'm using qemu to run
> > tests in guests, not testing qemu) is to build an initramfs by copying
> > the host binaries I need (a shell, ip, jq) and recursively sourcing
> > libraries using ldd (I guess I mentioned it's ugly).
> >
> > No downloads, systemd, dracut, etc., guest boots in half a second
> > (x86_64 on x86_64, KVM -- no idea with TCG). Host kernel with a few
> > modules packed and loaded by a custom init script.
>
> That is such a good idea, that it is exactly what I do too :-)
>
> https://gitlab.com/berrange/tiny-vm-tools/-/blob/master/make-tiny-image.py
>
> it works incredibly well for the simple case of host-arch==guest-arch.
Ah-ha, I feel better now. ;)
> It could be made to work for foreign arch easily enough - just need
> to have a foreign chroot lieing around somewhere you can point it
> to.
By the way, stage3 archives from:
https://www.gentoo.org/downloads/#other-arches
get quite close to it ...no kernel binaries though.
--
Stefano
- Re: "make check-acceptance" takes way too long, Cleber Rosa, 2022/02/01
- Re: "make check-acceptance" takes way too long, Stefano Brivio, 2022/02/01
- Re: "make check-acceptance" takes way too long, Gerd Hoffmann, 2022/02/01
- Re: "make check-acceptance" takes way too long, Daniel P . Berrangé, 2022/02/01
- Re: "make check-acceptance" takes way too long,
Stefano Brivio <=
- Re: "make check-acceptance" takes way too long, Alex Bennée, 2022/02/01
- Re: "make check-acceptance" takes way too long, Cleber Rosa, 2022/02/01
- Re: "make check-acceptance" takes way too long, Daniel P . Berrangé, 2022/02/01
- Re: "make check-acceptance" takes way too long, Cleber Rosa, 2022/02/01
- Re: "make check-acceptance" takes way too long, Alex Bennée, 2022/02/01
- Re: "make check-acceptance" takes way too long, Cleber Rosa, 2022/02/01
- Re: "make check-acceptance" takes way too long, Stefano Brivio, 2022/02/01
- Re: "make check-acceptance" takes way too long, Cédric Le Goater, 2022/02/01
Re: "make check-acceptance" takes way too long, Kashyap Chamarthy, 2022/02/01