* Fix a couple of misc errors in build scripts.
* Tweak scripts/kconfigs to make bpftrace work.
* Update how CI caching works to make builds faster (6 minute turnaround
time)
* Update CI config to generate per-scheduler debug archives w/ guest
dmesg/scheduler stdout, guest stdout, bpftrace script output,
veristat output.
* Update build scripts to accept the following:
** VNG RW -- write to host filesystem (better caching, logging).
* For stress tests in particular (via ini config):
** QEMU Opts -- to facilitate reproducing bugs (i.e. high core count).
** bpftrace scripts -- specify bpftrace scripts to run during stress
tests.
* enable bpftrace when using stress tests
update meson/stress test runner to enable
running bpftrace scripts while running
stress tests.
* disable layered stats output on ci
split build and test jobs to reduce ci turnaround time
and make it clear what is failing when something fails.
also add virtiofsd to deps to make test compilation faster
(most test time is compliation) and remove all force 9ps.
This change adds stress-ng as a load test for schedulers when running in
CI. It will run stress-ng while schedulers are being tested with a
reasonable amount of work. At the end of the run the stress-ng metrics
are collected for later analysis. However, since these results may be
running in a VM they may not be super robust.
