Roland Dreier <[EMAIL PROTECTED]> writes: > Paul> Didn't see any response to Michael's numbers other than > Paul> another mail today from Josh England saying 'great numbers > Paul> till it dies'. > > I've seen 225 MB/sec on my dual 2.2 GHz Xeon/PCI-X systems with NPtcp, > and on Josh's systems I've seen 425 MB/sec. I'm pretty sure Josh's > problems will be solved by upgrading from FW 4.6.1 to 4.6.2.
Cool. These numbers are starting to sound reasonable. :) Does mthca support NAPI? If you are interrupt limited I suspect that will help. With the MSI-X comments it sounds like you are interrupt limited. Last time I was messing around I could get 600MB/s with UD packets so it looks like there is still room from IBoIP to go. And that has been achieved with the Linux IP stack with 10 GigE adapters. What part checksum offloading and tuning for IP workloads in the hardware design I don't know. Still when memory bandwidth is greater than 3x the network speed I expect it mostly because a question of how much of your cpu the communication will utilize. Eric _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
