Comment 142 for bug 131094

Now I have made some tests with itrepid. The io wait time is lower and the throughput is higher with and without concurrent disc access as in hardy or gutsy. But the desktop responsiveness problem still exists.
The overall throughput of concurrent disc access is about 30% lower than on my 2.6.18 kernel.

When writing eight 2GB files concurrent on the disc, there is difference between the written data during the operation is up to 500 MB. All writing operations start at the same time. This difference is much lower (~200MB) under the 2.6.18 kernel

The kernel signature is Ubuntu 2.6.27-2.3-generic.

My tests results are only simulated once, because I was not able to use vmware or virtualbox and create a real working environment.