[PATCH 0/9] Enable arm64 host support in Gitlab

[Simon Glass]

Hi Tom,

On Sun, 8 Dec 2024 at 12:07, Tom Rini <trini at konsulko.com> wrote:
>
> Hey all,
>
> First, thanks to Simon Glass and also Linaro, we now have access to a
> few fast arm64 host machines in our Gitlab instance, to use as CI
> runners. This series finishes the work that I pushed earlier and Simon
> had started that enables arm64 hosts to be used for most things now.
>
> The first notable change, especially if you use this on your own Gitlab
> instance is that "DEFAULT_TAG" is now unused and we instead have:
> - DEFAULT_ALL_TAG:
> - DEFAULT_ARM64_TAG:
> - DEFAULT_AMD64_TAG:
> - DEFAULT_FAST_AMD64_TAG:
>
> This lets us say that some jobs can be run on all runners, because they
> are small enough that anything we'd connect to CI is fast enough and it
> also does not depend on the underlying host architecture. Next we have
> tags for any arm64 host, or any amd64 host. Finally, we have a tag for
> fast amd64 hosts. What these last three are for is that we have a few
> jobs that need to run on amd64 hosts and so we have to restrict them
> there, but we also have now reworked the world build jobs to build
> (almost) everything in a single job and on the fast amd64 machines this
> is still as quick as the old way was, in practice.
>
> To reach this point, we say that the Xtensa jobs can only run on amd64
> hosts. Our targets only work with the binary-only toolchain and so this
> is a reasonable limit and we exclude them from the world build jobs. We
> also need to deal with ensuring the right toolchain is used regardless
> what the host architecture is and that we don't use the host toolchain
> by accident. Finally, because some of these changes needed to be worked
> out in the linter, fix some of the general warnings that notes as well.

I haven't tried out this series. Does this handle running multiple
test.py runs at once? For me that ends up providing a large
improvement in CI times (down to about 35 mins with just two fast
runners).

Regards,
Simon