Amazingly the RC4 kernels booted! I tried both low latency and generic and problem is still there.
It may be unrelated but I think it is worth mentioning never the less. I have problems with keyboard skipping keypresses (Eg. forgets that I keep my finger on CTRL key, does C instead of CTRL-C etc.), touchpad palm detection not functioning (yes tried to enable it), grub breaking windows hibernation/fastboot (had to put windows boot loader to do the booting), amdgpu-pro drivers crashing, wifi rtl8723be needing driver from github. Yeah, things are barely functioning here :( 4.8.0-040800rc4-generic: Operations performed: 15360 Read, 10240 Write, 32675 Other = 58275 Total Read 240Mb Written 160Mb Total transferred 400Mb (1.3333Mb/sec) 85.33 Requests/sec executed Test execution summary: total time: 300.0046s total number of events: 25600 total time taken by event execution: 181.6251 per-request statistics: min: 0.01ms avg: 7.09ms max: 73.11ms approx. 95 percentile: 17.50ms Threads fairness: events (avg/stddev): 25600.0000/0.00 execution time (avg/stddev): 181.6251/0.00 4.8.0-040800rc4-lowlatency: Operations performed: 15360 Read, 10240 Write, 32641 Other = 58241 Total Read 240Mb Written 160Mb Total transferred 400Mb (1.3332Mb/sec) 85.32 Requests/sec executed Test execution summary: total time: 300.0363s total number of events: 25600 total time taken by event execution: 181.5607 per-request statistics: min: 0.01ms avg: 7.09ms max: 54.21ms approx. 95 percentile: 17.46ms Threads fairness: events (avg/stddev): 25600.0000/0.00 execution time (avg/stddev): 181.5607/0.00 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1616830 Title: Bad disk performance with AMD Carrizo FCH controllers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1616830/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs