Francesco DiMambro wrote: > Hi Andrew > I have a T2000 1Ghz 16 CPU's I'm running what came with the > system which is Generic_127111-09, which is not U4, not sure what > update that is. I did do a quick test before I upgrade those machines, > with the same parameters as before. What I have is Streams MDT, > and Streams LSO > > MDT 1500 1.2G > LSO 1500 692Mb/s > MDT 9000 2.1G > LSO 689Mb/s
Hmm.. So why is MDT so different for MTU 1500 vs MTU 9000? Is this because the driver is traversing the packets, and has to do 6x as much work in the 1500B case than it does for the 9000B case? That's certainly one advantage of hardware LSO.. it is the same amount of work for the host regardless of the MSS. It is a shame LSO performs so terribly in a non GLDv3 context, but at least it performs equally regardless of the MSS. Drew _______________________________________________ networking-discuss mailing list [email protected]
