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DateTue, 20 Nov 2007 06:57:55 +0100
FromIngo Molnar <>
SubjectRe: High priority tasks break SMP balancer?
* Micah Dowty <micah@vmware.com> wrote:

> > this one is being triggered whenever a cpu becomes idle (schedule() 
> > --> idle_balance() --> load_balance_newidle()).
> > 
> > (this flag is a bit #1 == 2)
> > 
> > cat /proc/sys/kernel/sched_domain/cpu0/domain0/flags
> 
> Hmm. I don't have this file on my system:
> 
> root@micah-64:/proc/sys/kernel/sched_domain/cpu0/domain0# ls
> busy_factor  busy_idx  forkexec_idx  idle_idx  imbalance_pct  max_interval  min_interval  newidle_idx  wake_idx
> root@micah-64:/proc/sys/kernel/sched_domain/cpu0/domain0# uname -a
> Linux micah-64 2.6.23.1 #1 SMP Fri Nov 2 12:25:47 PDT 2007 x86_64 GNU/Linux
> 
> Is there a config option I'm missing?

yes, CONFIG_SCHED_DEBUG.

	Ingo
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