In addition, I tried 14.04.4 with 4.2.0-27-generic, result is same.,.
Operations performed: 15420 Read, 10280 Write, 32818 Other = 58518 Total Read 240.94Mb Written 160.62Mb Total transferred 401.56Mb (1.3385Mb/sec) 85.67 Requests/sec executed Test execution summary: total time: 300.0019s total number of events: 25700 total time taken by event execution: 181.3283 per-request statistics: min: 0.01ms avg: 7.06ms max: 117.32ms approx. 95 percentile: 17.33ms Threads fairness: events (avg/stddev): 25700.0000/0.00 execution time (avg/stddev): 181.3283/0.00 -- 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