[Bug 131094] Re: Heavy Disk I/O harms desktop responsiveness

[Brian Takita]

What is also strange is that the issue still persists even after a
reboot, though a bit less severe.

Now running sudo hdparm -T /dev/sda yields:

saturn:~ $ sudo hdparm -T /dev/sda
/dev/sda:
 Timing cached reads:   2152 MB in  2.00 seconds = 1078.08 MB/sec

I am able to get hdparm back to ~ 6500 MB/sec if I wait for around 30
minutes. Locking the system also seems to help.

I am also able to get it working faster after shutting down gdm and
stopping some processes.

Could there be some persistent buffer out there that is blocking the
entire system?

-- 
Heavy Disk I/O harms desktop responsiveness
https://bugs.launchpad.net/bugs/131094
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