Public bug reported:
My system have been behaving really slow, and after some investigation,
I've traced it to some sort of IO-problem. After changing FS to XFS,
I've discovered that the source of the problem really seems to lie on
level deeper, directly at IO. After buying a new drive, this time SATA,
and with a brand new SATA controller. (Promise SATA 300 TX4). That
haven't helped at all.
In a standard session, opening a terminal and typing hdparm -t /dev/sda
gives me around 18MB/s. If I reboot and pass init=/bin/bash, the same
hdparm test gives me ~40 MB/s. Again, reboot, and hdparm from tty1
before logging in, around 25MB/s. Killing acpid, up to 40-50MB/s again.
Logging in, back down to ~20. Starting glxgears (??!?!?), and hdparm
gives me again ~50MB/s.
Any clues on how to find exactly what is eating my harddrive, and why?
** Affects: Ubuntu
Importance: Undecided
Status: Unconfirmed
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Strange IO-problems
https://launchpad.net/bugs/66267
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