Re: [PATCH] ia64: disable preemption in udelay()

From: Alan Cox
Date: Fri Dec 16 2005 - 09:13:41 EST


On Iau, 2005-12-15 at 17:04 -0800, Luck, Tony wrote:
> Being out-of-line would reduce accuracy, but this would only be
> significant when the sleep is for a very small number of microseconds.

Even then its a predicted branch to code that will probably be in cache
so really ought to have no material impact.


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/