On 7/20/07, Jack Vogel <jfvogel_at_gmail.com> wrote: > On 7/20/07, Alexandre Biancalana <biancalana_at_gmail.com> wrote: > > On 7/20/07, Jack Vogel <jfvogel_at_gmail.com> wrote: > > > > > > I am actually quite impressed with the stack right now, with our new > > > Oplin hardware and the ixgbe driver I have 9.8 Gb/s pumping thru > > > it. Of course its all about adequate hardware, configuration, and > > > tuning. > > > > > > Can you post the configuration tuning done ? > > > > > > Get rid of INVARIANT and WITNESS of course. > Use ULE scheduler > Use MTU of 9000 > Set interrupt storm threshold up to 8000 (default is 1000), if we didnt > do this the channel would get throttled. > > Then we need to make sure MSI/X is enabled, and set the number > of RX queues to 8 (this is Oplin specific). > > The ixgbe driver uses 4K jumbo clusters as long as you set MTU > up. I have experimented with Kip's patch for 9K and it helps a bit > but mainly it improves cpu utilization. > > Beyond this doing 10G is very sensitive to things like cpu's, frontside bus, > memory, etc, but these are things that I didn't personally set up, I just > tell them to give me a kick ass machine :) OH, one other item I forgot, use TSO, I think thats significant help.Received on Fri Jul 20 2007 - 21:10:05 UTC
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