On Tue, Apr 27, 2010 at 08:00:02AM -0500, Anthony Liguori wrote: > On 04/27/2010 06:11 AM, Gleb Natapov wrote: > >Network cards have low number of rx/tx buffers interrupt. This is also > >heuristic. Do you think driver should poll for this event instead and > >NIC designers just wasted their time designing the feature? > > I don't see how the two cases are at all similar. > They are the same. They send notification when resource is low. > More importantly, I don't see what the burden is of polling when > you're talking about a very unusual statistic that has a very > limited use case. > Poll is the wrong answer. Always. The statistic is very common and has wide use case unless you have unlimited storage. -- Gleb. -- 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
