Re: [RFC][PATCH 00/32] Nohz cpusets v2 (adaptive tickless kernel)

From: Frederic Weisbecker
Date: Thu Mar 29 2012 - 20:45:40 EST


On Thu, Mar 29, 2012 at 05:33:46PM -0700, Kevin Hilman wrote:
> Frederic Weisbecker <fweisbec@xxxxxxxxx> writes:
>
> > There are still a lot of things to handle. Especially about
> > what is done by scheduler_tick() but we also need to:
> >
> > - completely handle cputime accounting (need to find every "reader"
> > of cputime and flush cputimes for all of them).
> > -handle perf
> > - handle irqtime finegrained accounting
> > - handle ilb load balancing
> > - etc...
>
> - add more arch support :)
>
> For ARM, I've started hacking things into place and have some
> preliminary patches to add ARM support for the new IPI, syscall support,
> exception hooks, etc.[1]
>
> This is enough to get some basic things running and test the nohz
> cpusets functionality on ARM, and for others to start trying it out.
>
> For anyone interested in collaborating on ARM support, my
> work-in-progress branch is below[1] based on Frederic's cpuset-v2
> branch. Patches and testing welcome.
>
> Kevin
>
> [1] git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux.git wip/arm-nohz-cpusets

Nice! Thanks for working on this. You may want to work with Geoff Levand who's working
on the ARM port too.
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