Re: Adding binutils to the GNU Toolchain buildbot on sourceware

[Mark Wielaard <mark@klomp.org>]

Hi Frank,

On Thu, Apr 28, 2022 at 10:22:06AM -0400, Frank Ch. Eigler via Binutils wrote:
> (The fedora-rawhide x86-64 builder
> I just started operating runs all the testsuites on all changes to
> binutils-gdb, taking about 90 minutes per build.  I have no problem
> with that.)

That is of course fine if the worker maintainer (you) is OK with
that. But do note that since your worker also runs other builders,
those buildsets might have to wait for those longer builds to
finish. e.g. at the moment there is a binutils-fedrawhide-x86_64 build
waiting for 6 hours now:
https://builder.sourceware.org/buildbot/#/pendingbuildrequests

And it might be in the queue for a couple more. It will eventually get
triggered, but it means the changeset for that buildset only gets a
report on failure (change) after a couple of hours. Which is why I
would like you to consider swapping that builder to another fedora
worker that is less overloaded. That way committers to binutils will
get a report earlier if something breaks. See my proposed patch at:
https://sourceware.org/pipermail/binutils/2022-April/120561.html

BTW. If you haven't done so yet (and you have the disk space) try
installing ccache on your worker. It drastically reduces build times
since patches normally only change a few source files and the ccache
will save you from recompiling everything.

Also you can consider setting collapseRequests=True on the
binutils_gdb_fedrawhide_x86_64_builder to collapse changes into one
build to keep the number of pending builds shorter:
https://docs.buildbot.net/latest/manual/configuration/builders.html#collapsing-build-requests

Cheers,

Mark