The last commit passed CI, so this final bump is just to allow for
deviation caused by different loads on the runner machines. With this
change, I don't expect any current unit test to ever time out, even when
CI is under extreme load.
Unfortunately, Windows' scheduler means that test timeouts get hit very
easily, because it seems the system can refuse to schedule a waiting
process for *upwards of 10 minutes*. We should look for a better
solution for this problem going forwards, but for now, just give Windows
a very high test timeout.
The 30 minute timeout set here is around the duration of a *full CI run*
on Windows, so it should be impossible to hit normally, but it means
that if a test gets stuck we'll at least get told (eventually).
There are two reasons for this:
1. Apple is about to drop support for this target. Zig will keep support
but move it to a lower tier - one that does not require continuous CI
testing. Support for this target will be maintained by the enthusiasm
of contributors but will not block other bug fixes and enhancements.
2. This is our only non-self-hosted action runner. We are migrating away
from GitHub soon at which point this runner will no longer be
available.
These were low value and unfocused tests. We already have coverage of the
important aspects of these tests elsewhere. Additionally, there was really no
need for these to have their own test harness.
This reverts commit fa445d86a1.
Narrator: It did, in fact, make a difference.
For whatever reason, building LLVM against spacemit_x60 or baseline makes no
noticeable difference in terms of performance, but building the Zig compiler
against spacemit_x60 does. Also, the miscompilation that was causing
riscv64-linux-debug to fail was in the LLVM libraries, not in the Zig compiler,
so we may as well take the win here.
The idea is to have 2 runners per machine, since a lot of time is spent building
stage3 and stage4, both of which are largely single-core affairs. This will make
the test steps take longer, however, so the timeouts have been bumped a bit, and
max RSS for the test step has been lowered from 64G to 32G to prevent OOM.
Finally, we now only run a single ReleaseSafe job on PRs; Debug and Release jobs
are limited to pushes.
