Re: [PATCH] Reduce cacheline bouncing in cpu_idle_wait

2005-03-10 Thread Zwane Mwaikambo
On Thu, 10 Mar 2005, Andi Kleen wrote: > Zwane Mwaikambo <[EMAIL PROTECTED]> writes: > > > Andi noted that during normal runtime cpu_idle_map is bounced around a > > lot, and occassionally at a higher frequency than the timer interrupt > > wakeup which we normally exit pm_idle from. So switch t

Re: [PATCH] Reduce cacheline bouncing in cpu_idle_wait

2005-03-10 Thread Andi Kleen
Zwane Mwaikambo <[EMAIL PROTECTED]> writes: > Andi noted that during normal runtime cpu_idle_map is bounced around a > lot, and occassionally at a higher frequency than the timer interrupt > wakeup which we normally exit pm_idle from. So switch to a percpu > variable. Andi i didn't move things

[PATCH] Reduce cacheline bouncing in cpu_idle_wait

2005-03-09 Thread Zwane Mwaikambo
Andi noted that during normal runtime cpu_idle_map is bounced around a lot, and occassionally at a higher frequency than the timer interrupt wakeup which we normally exit pm_idle from. So switch to a percpu variable. Andi i didn't move things to the slow path because it would involve adding sch