Thread (45 messages) 45 messages, 9 authors, 2010-07-02

Re: [PATCH 09/12] irq: implement IRQ expecting

From: Jiri Slaby <hidden>
Date: 2010-06-14 09:22:08
Also in: lkml

On 06/13/2010 05:31 PM, Tejun Heo wrote:
quoted hunk ↗ jump to hunk
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
...
quoted hunk ↗ jump to hunk
@@ -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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