Solved by changing IO scheduler to deadline. cat /sys/block/sda/queue/scheduler in brackets you'll see your current scheduler, it's probably cfg...
change it to deadline. sudo doesn't work, need to be root su - echo deadline > /sys/block/sda/queue/scheduler test it... if it works then add the echo line to your rc.local or as a kernel parameter: elevator=deadline Have tried the same copy job and load didn't go over 3... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/365775 Title: Very high CPU usage during file operations -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
