[lkml]   [2011]   [Aug]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [RFC PATCH 00/32] Nohz cpusets (was: Nohz Tasks)
On Thu, Aug 18, 2011 at 6:25 AM, Frederic Weisbecker <> wrote:
>> Why not do it unconditionally?  That is, if all the conditions are
>> fulfilled, disable the tick regardless of any cpuset settings.
> Because I'm not sure it's a win on every workload. This involves
> some hooks here and there (syscall slow path), IPIs, etc...

I agree with Avi. I'd be inclined to investigate further to see if
there are any important workloads on which it's not a win - and then
add the extra complexity to control it from cpusets if necessary.
Unless there's really a good reason to make it configurable, it's
simpler to make it unconditional.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2011-08-20 09:49    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean