Re: [PATCH 3/6] sched: high-res preemption tick

On Wed, 2007-10-31 at 22:53 +0100, Andi Kleen wrote: > Peter Zijlstra <[EMAIL PROTECTED]> writes: > > > Use HR-timers (when available) to deliver an accurate preemption tick. > > > > The regular scheduler tick that runs at 1/HZ can be too coarse when nice > > level are used. The fairness system wi

Re: [PATCH 3/6] sched: high-res preemption tick

On Wed, 2007-10-31 at 22:53 +0100, Andi Kleen wrote: > Peter Zijlstra <[EMAIL PROTECTED]> writes: > > > Use HR-timers (when available) to deliver an accurate preemption tick. > > > > The regular scheduler tick that runs at 1/HZ can be too coarse when nice > > level are used. The fairness system w

Re: [PATCH 3/6] sched: high-res preemption tick

Peter Zijlstra <[EMAIL PROTECTED]> writes: > Use HR-timers (when available) to deliver an accurate preemption tick. > > The regular scheduler tick that runs at 1/HZ can be too coarse when nice > level are used. The fairness system will still keep the cpu utilisation 'fair' > by then delaying the t