Comment 12 for bug 574910

agh@thunder:~$ sudo dpkg -i linux-image-2.6.31-22-server_2.6.31-22.60_amd64.deb

Manually installing the latest kernel from Karmic Koala also acts as a fix for the problems, which is pretty much a smoking gun pointing at the kernel shipped with Lucid Lynx, in my opinion!

Things which were resolved:

    1) Memory usage is now over 500MB lighter according to 'free -m'
    2) Load average no longer idles between 0.7 - 1.1 on the box

Number of wakeups per second is pretty much identical, as is the top cause for wakeups, namely the scheduler.

I've uploaded another archive containing more diagnostic output, sourced using the same commands except this time running a Karmic Koala kernel whilst keeping a Lucid Lynx userland. Perhaps this will be of use to someone?

If someone needs help diagnosing the problem I can replicate it easily, am happy to assist, and within reason have a fairly large pool of different hardware (albeit all HP ProLiant) which can be quickly spun up for testing.