Garrett D'Amore wrote: > I'm testing e1000g on a T2000. Default daily build 04/30. (Built > against snv-61). > > I'm seeing really, really dismal IP forwarding performance with 64-byte > frames. Like ~5.8% line utilization (it seems to top out at around > 90,000 packets per second default.) This is a default configuration (no > tunables set whatsover), and yes, it turns out that interrupts for my > two NICs are interrupting on CPUs 6 and 7 (and yes, I know that this is > a bad idea, but still, it should not show such terrible, dismal > performance out of the box.) This performance is about half of the > default S10 performance. > > I've not started using er_kernel yet to profile and find out what is > happening. At first I thought the problem was my test setup, but when I > lowered the test min thresholds from 10% to 1%, I get successful results. > > I'm going to try assigning additional cpus to create and setup some soft > rings, to see how that helps. > > Anyone have any ideas up front about what is wrong? > > This default performance is, IMO, unacceptable.
Yes, you are using code which is not complete. The soft rings have moved to mac layer (the tuning auto tuning on Niagara is disabled in crossbow-gate due to a bug I can't remember right now). Raj/Gopi, can you help Garrett. Cheers, Sunay > > -- Garrett > > > _______________________________________________ > crossbow-discuss mailing list > crossbow-discuss at opensolaris.org > http://opensolaris.org/mailman/listinfo/crossbow-discuss -- Sunay Tripathi Distinguished Engineer Solaris Core Operating System Sun MicroSystems Inc. Solaris Networking: http://www.opensolaris.org/os/community/networking Project Crossbow: http://www.opensolaris.org/os/project/crossbow
