RE: vmstat: use our own timer events

[Christoph Lameter]

On Wed, 2 May 2007, Pallipadi, Venkatesh wrote:

> Can this use 'deferrable timer' along with round_jiffies. That
> will eliminate the issue of too frequent interrupt when CPU is idle.

Yes I asked Arjan about this.
> >+	struct delayed_work *vmstat_work = &per_cpu(vmstat_work, cpu);
> >+
> >+	INIT_DELAYED_WORK(vmstat_work, vmstat_update);
> 
> This change alone should help.
> 	INIT_DELAYED_WORK_DEFERRABLE(vmstat_work, vmstat_update);
> 

Hmmm.. I need to check out what this does exactly.

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