Messages in this thread |  | | Date | Fri, 13 Dec 2013 15:44:35 +0000 | From | Wei Liu <> | Subject | Re: [PATCH net-next v2 9/9] xen-netback: Aggregate TX unmap operations |
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On Thu, Dec 12, 2013 at 11:48:17PM +0000, Zoltan Kiss wrote: > Unmapping causes TLB flushing, therefore we should make it in the largest > possible batches. However we shouldn't starve the guest for too long. So if > the guest has space for at least two big packets and we don't have at least a > quarter ring to unmap, delay it for at most 1 milisec. >
Is this solution temporary or permanent? If it is permanent would it make sense to make these parameter tunable?
Wei.
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