Comment 95 for bug 131094

The kernel 2.6.24-17 does not help. I think it's becomes even worse with the new kernel.
I tried Debian Lenny and Fedora Core 8. The problem exists in these distros too, but it's much better than in gutsy. I am using ext3 in journal mode. I tried xfs, but same problem. I had never performance problems with ext3 under feisty.

Hardy is unusable for me. It's fine for surfing, writing documents or reading pdfs. It's awful for working with vmware or disk intensive apps.

I just finished a backup (2.6.24-16) with rdiff-backup (pybackpack) on a local usb2 harddisk. I think it's related with this problem. Here is the log.

StartTime 1209878093.00 (Sun May 4 07:14:53 2008)
EndTime 1210019188.36 (Mon May 5 22:26:28 2008)
ElapsedTime 141095.36 (39 hours 11 minutes 35.36 seconds)
SourceFiles 530196
SourceFileSize 171720983690 (160 GB)
MirrorFiles 501408
MirrorFileSize 139162927405 (130 GB)
NewFiles 240477
NewFileSize 86693084491 (80.7 GB)
DeletedFiles 211689
DeletedFileSize 57296675851 (53.4 GB)
ChangedFiles 103582
ChangedSourceSize 33585642382 (31.3 GB)
ChangedMirrorSize 30423994737 (28.3 GB)
IncrementFiles 555748
IncrementFileSize 32637905299 (30.4 GB)
TotalDestinationSizeChange 65195961584 (60.7 GB)
Errors 66

The last backup under gutsy takes about two hours.

StartTime 1205655350.00 (Sun Mar 16 09:15:50 2008)
EndTime 1205663714.77 (Sun Mar 16 11:35:14 2008)
ElapsedTime 8364.77 (2 hours 19 minutes 24.77 seconds)
SourceFiles 501408
SourceFileSize 139162927405 (130 GB)
MirrorFiles 497434
MirrorFileSize 147995632923 (138 GB)
NewFiles 5124
NewFileSize 316728530 (302 MB)
DeletedFiles 1150
DeletedFileSize 9327300673 (8.69 GB)
ChangedFiles 1648
ChangedSourceSize 41242024637 (38.4 GB)
ChangedMirrorSize 41064158012 (38.2 GB)
IncrementFiles 7924
IncrementFileSize 343516700 (328 MB)
TotalDestinationSizeChange -8489188818 (-7.91 GB)
Errors 34