Re: [patch 1/1] Fix spinlock debugging delays to not time out too early

[Ingo Molnar <mingo@elte.hu>]

* Luck, Tony <tony.luck@intel.com> wrote:

> On Tue, Feb 07, 2006 at 07:29:24PM +0100, Andi Kleen wrote:
> > For this case that would be ok, as long as it isn't a hour or so,
> > but let's say < 1 minute.
> 
> About 9.7 seconds on ia64 for:
> 
> 	for (i = 0; i < loops_per_jiffy * HZ; i++) {
> 		__delay(1);
> 	}
> 
> so yes, well under a minute.

yeah, that's good enough. We want to have a minimum delay of 1 second, 
because otherwise we'd be getting false positives under high load (and 
under some bad drivers). Having a larger delay is not an issue, as long 
as it's below the average hit-reset latency of users ;)

i'd expect the HPET-based __delay(1) to be the heaviest.

	Ingo