Re: [PATCH 3/4] sched: introduce synchronized idle injection

Peter Zijlstra
2015-11-18T10:35:57Z

On Wed, Nov 18, 2015 at 09:36:22AM +0100, Ingo Molnar wrote:
> What will such throttling do to latencies, as observed by user-space tasks? What's
> the typical expected frequency of the throttling frequency that you are targeting?

The default has 5ms (iirc) of forced idle, so depending on what you do,
noticeable to outright painful.