Quoting Chris Wilson (2017-10-26 16:31:33)
> Since removing the module parameter to force selection of ringbuffer
> emission for gen8, the code is defunct. Remove it.
Ah, there's meant to a patch to remove the modparam first. It's not
required to test this patch, just equally pointless to keep
i91
Since removing the module parameter to force selection of ringbuffer
emission for gen8, the code is defunct. Remove it.
To put the difference into perspective, a couple of microbenchmarks
(bdw i7-5557u, 20170324):
ring execlists
exec continuous nops