[igt-dev] [PATCH i-g-t] intel-ci: add a pre-merge blacklist to reduce the testing queue

[Chris Wilson]

Quoting Martin Peres (2020-02-20 15:32:09)
> +###############################################################################
> +# These 8 tests are responsible for a significant portion of our execution time
> +# despite them testing a feature which is only found in older userspaces:
> +#
> +# - shard-skl: 0.1% (~15 seconds)
> +# - shard-kbl: 3.5% (~4.5 minutes)
> +# - shard-apl: 10% (~18 minutes)
> +# - shard-glk: 6.3% (~14 minutes)
> +# - shard-icl: 1.7% (~3.5 minutes)
> +# - shard-tgl: 1.6% (~3 minutes)
> +#
> +# Data acquired on 2020-02-19 by Martin Peres
> +###############################################################################
> +igt at gem_pwrite@big-.*

That is not true. They are testing the obj->mm.get_page cache which is
used for all page lookups in the driver.

It's harder to predictably exercise from userspace through other
interfaces.

So replace with a unittest for the cache :-p
-Chris