On Tue, 03 Jul 2012 08:39:39 +0800, Asias He <asias@xxxxxxxxxx> wrote: > On 07/02/2012 02:41 PM, Rusty Russell wrote: > > Sure, our guest merging might save us 100x as many exits as no merging. > > But since we're not doing many requests, does it matter? > > We can still have many requests with slow devices. The number of > requests depends on the workload in guest. E.g. 512 IO threads in guest > keeping doing IO. You can have many requests outstanding. But if the device is slow, the rate of requests being serviced must be low. Am I misunderstanding something? I thought if you could have a high rate of requests, it's not a slow device. Cheers, Rusty. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
