On Tue, 5 Mar 2019 14:07:15 +0000
Alan Jenkins <alan.christopher.jenkins(a)gmail.com> wrote:
On 13/12/2018, Laura Abbott <labbott(a)redhat.com> wrote:
> Thanks for starting this discussion. Based on this thread and
> other discussions, I'm going to see about enabling BFQ for
> 4.21. Once 4.21-rc1 comes out (i.e. almost all configs should
> be in) we can review the settings and see if anything needs
> to be adjusted. If I get some time before then (i.e. before
> I leave for holiday) I'll see if I can change the defaults.
Are there any more up-to-date details on this? Specifically I am
wondering if there will be any separate package providing udev rules,
that people should be aware of, if they want to provide testing of 5.0
kernels for Fedora.
I've been using the 5.0 kernels locally compiled and optimized for my
hardware with bfq enabled. I don't have multi thread hardware. The
performance has been comparable to cfq, or slightly worse.
Subjective. And there could be other software changes affecting this.
I've recently also started using the gcc kernel-stack plugin to clean
stack on return from kernel calls, and didn't really notice any effect
on performance in normal usage.