On Mon, Mar 20, 2006 at 02:04:07PM +0200, Michael S. Tsirkin wrote: > does not stretch ACKs anymore. RFC 2581 does mention that it might be OK to > stretch ACKs "after careful consideration", and we are seeing that it helps > IP over InfiniBand, so recent Linux kernels perform worse in that respect. > > And since there does not seem to be a way to figure it out automagically when > doing this is a good idea, I proposed adding some kind of knob that will let > the > user apply the consideration for us.
Wouldn't it make sense to strech the ACK when the previous ACK is still in the TX queue of the device? I know that sort of behaviour was always an issue on modem links where you don't want to send out redundant ACKs. -ben -- "Time is of no importance, Mr. President, only life is important." Don't Email: <[EMAIL PROTECTED]>. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html