I see CPU go to 100% also when downloading files from Internet at a speed of 800 KB/s, in addition of copying/moving files between partitions or hard drives.
Xubuntu 10.10 kernel 2.6.35-28-generic -CPU AMD Athlon XP 2400+ (2,0 Ghz) -685 MB of RAM -Motherboard: SiS-741 Hard drives IDE P-ATA: -QUANTUM FIREBALL CX13.0A : 13 GB, UDMA4 -MAXTOR 6L040J2 : 40 GB, UDMA 6 -WDC WD400BB-00DGA0 : 40 GB, UDMA 5 ** Attachment added: "hdparm -I /dev/sd* for my 3 hdd" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/365775/+attachment/2151192/+files/3%20hdd%20ata%20info -- 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