Same problem here also with Karmic Koala. uname : Linux AMD64 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC 2009 x86_64 GNU/Linux My sata disks show ok performances if tested with hdparm:
/dev/sdb: Timing cached reads: 1912 MB in 2.00 seconds = 956.43 MB/sec Timing buffered disk reads: 224 MB in 3.01 seconds = 74.47 MB/sec /dev/sdc: Timing cached reads: 1892 MB in 2.00 seconds = 945.87 MB/sec Timing buffered disk reads: 332 MB in 3.00 seconds = 110.64 MB/sec But if I try to copy a file from one place to another (same disk, same or different partition or different disk) I get steady really poor performances of between 2 and 4 MB/sec. In addition, the whole system becomes really slow while copying. This is both using cp in a console or using Gnome and has been for a while. All my disks/partitions are formated ext3. My SATA controller is : 00:05.0 IDE interface: nVidia Corporation MCP55 SATA Controller (rev a2) I hope this problem will get a solution, it is quite difficult to work with big file in the current situation. I would be glad to provide any additional info if it can help. Franck -- Slow SATA performance https://bugs.launchpad.net/bugs/119730 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
