Hello,
On 06/14/2010 11:21 AM, Jiri Slaby wrote:
> 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?
On every tick and no slack. :-)
--
tejun
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