OK, so for a more scientific test. I used sysbench to test CPU performance. I tested with the stock 3.11.0-15-generic kernel and the test 3.13.0-031300rc3-generic kernel, both before and resume a suspend/resume cycle.
The command i used to perform the tests: sysbench --num-threads=8 --test=cpu --cpu-max-prime=50000 run The results: 3.11.0-15-generic: 12.4127s 3.11.0-15-generic (after suspend): 78.8023s 3.13.0-031300rc3-generic: 12.2202s 3.13.0-031300rc3-generic (after suspend): 35.0208s We can very similar performance before suspend and degradation after resume. A huge degradation with 3.11 (about 6.5x slower) and a smaller one (about 3x slower) with 3.13. Hope these help. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1260112 Title: CPU stuck on minimum frequency after resume from suspend and unplugged To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1260112/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
