We have tested the patched kernel on one network intensive (high packet) workload with max_cstate=1 and ondemand governor disabled and it has lower network throughput than the default kernel had with intel_pstate=enable. There also appears to be a futex performance issue with the c4.8xlarge which we are still investigating and may be contributing to the problem.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1477171 Title: Enable intel_pstate by default on Trusty EC2 AMIs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1477171/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
