On Wed, Mar 05, 2008 at 03:53:52AM -0600, Robin Holt wrote: > On Wed, Mar 05, 2008 at 08:41:28PM +1100, Matthew Chapman wrote: > > Is there any interval timer on HP zx1 platforms, other than the > > CPU-based ITC/ITM? > > How fine grained do you need? How much jitter are you willing to > tolerate? How much multiplexing are we talking about? I don't need any strong guarantees other than the fact that an interrupt arrives 'sometime in the next millisecond' after programming the timer - ideally the timeouts I want are of the order of 10 microseconds (+/- an order of magnitude), but large jitter is fine. I'm just looking for a separate mechanism for short-ish timeouts in my hypervisor, that doesn't involve having to hijack ITM (the latter being used for HZ-order events). Matt -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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