Not reproducible here, on a ThinkPad T42. Someone able to reproduce this problem needs to help us debug it, or it won't be possible to find the cause.
potpal:[~] sudo hdparm -tT /dev/hda # before login
/dev/hda: Timing cached reads: 1516 MB in 2.00 seconds = 756.60 MB/sec Timing buffered disk reads: 66 MB in 3.07 seconds = 21.47 MB/sec potpal:[~] sudo hdparm -tT /dev/hda # after login
/dev/hda: Timing cached reads: 1656 MB in 2.00 seconds = 827.30 MB/sec Timing buffered disk reads: 72 MB in 3.01 seconds = 23.94 MB/sec
Not reproducible here, on a ThinkPad T42. Someone able to reproduce this
problem needs to help us debug it, or it won't be possible to find the cause.
potpal:[~] sudo hdparm -tT /dev/hda # before login
/dev/hda:
Timing cached reads: 1516 MB in 2.00 seconds = 756.60 MB/sec
Timing buffered disk reads: 66 MB in 3.07 seconds = 21.47 MB/sec
potpal:[~] sudo hdparm -tT /dev/hda # after login
/dev/hda:
Timing cached reads: 1656 MB in 2.00 seconds = 827.30 MB/sec
Timing buffered disk reads: 72 MB in 3.01 seconds = 23.94 MB/sec