On Wednesday 01 February 2006 17:52, Ben Greear wrote: > I haven't been able to get a TCP connection to saturate a 1Gbps link > in both directions simultaneously. I *have* been able to fully saturate > 2 pro/1000 NICs on the same machine using pktgen, so the NIC/driver can > support it if only TCP can run fast enough...
I remember someone complaining that this (back to back gigabit TCP saturation) worked with 2.4 and stopped with 2.6. My guess back then was NAPI, but even disabling that didn't fully solve it. If you can reproduce that (it working with 2.4) then it might be useful if you could: - Try to figure if there are any interesting difference between the two runs in netstat -s - And perhaps do some packet capture of the 2.4 and 2.6 runs and run them through tcptrace (http://jarok.cs.ohiou.edu/software/tcptrace/) and do a diff between the two. -Andi - 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
