I think we need you to give us a good test case (good in the sense that it reproduces the issue and also is easy to set up for us). Because I tried again this morning with iperf but on two t1-micro (64bit) Trusty daily AMIs. And with that I seem to get identical performance with or witout GRO disabled.
25 runs gro=on: Average bandwidth = 67.1386 Mbits/sec, StdDev = 15.0925 Mbits/sec 25 runs gro=off: Average bandwitdh = 67.4393 Mbits/sec, StdDev = 15.0597 Mbits/sec -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1391339 Title: Trusty kernel inbound network performance regression when GRO is enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1391339/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
