My situation might be related to this bug: I bought a Thinkpad T61 in last October. I erased Vista and installed Ubuntu 8.7 and later upgraded to 8.10. The disk speed seemed slow. I tried the following command to test the real read speed:
$ date; cp a_100_MB_file /dev/null; date; The copying takes about 20 seconds. So the speed is about 5MB/sec. But when I try to use hdparm to test the read speed, the result is like this: $ sudo hdparm -t /dev/sda /dev/sda: Timing buffered disk reads: 130 MB in 3.03 seconds = 42.84 MB/sec Can anybody tell me why the real read speed is far from the 42.84MB/sec? -- [regression]Slow disk transfer rate on Hardy https://bugs.launchpad.net/bugs/216878 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs