On 06/13/2010 05:31 PM, Tejun Heo wrote:
> --- a/kernel/irq/spurious.c
> +++ b/kernel/irq/spurious.c
...
> @@ -25,9 +26,43 @@ enum {
> /* IRQ polling common parameters */
> IRQ_POLL_SLOW_INTV = 3 * HZ, /* not too slow for ppl, slow enough for machine */
> IRQ_POLL_INTV = HZ / 100, /* from the good ol' 100HZ tick */
> + IRQ_POLL_QUICK_INTV = HZ / 1000, /* pretty quick but not too taxing */
>
> IRQ_POLL_SLOW_SLACK = HZ,
> IRQ_POLL_SLACK = HZ / 1000, /* 10% slack */
> + IRQ_POLL_QUICK_SLACK = HZ / 10000, /* 10% slack */
Hi. These are zeros on most systems (assuming distros set HZ=100 and
250), what is their purpose then?
regards,
--
js
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