I have the same problem with lcuid, although I have a 67.9 MByte/sec speed copying from ext4 to a different disk ext4. The two disks are attached to a Sata 2.0 port (the two drives are samsung 1TByte/32MByte cache). For me it does not matter if the file size is huge or not, because if the file size is small than the speed is at 8-10MByte/s, which is sad. The load average is 2.46 which is "acceptable". I use my computer for desktop so it would be fine for me a little lower speed of copying, but a little more responsiveness.
It is very interesting that only a few people (13 bug reports as I see) have this issue. Thanks for any suggestions. -- 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 ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs