Making Karmic more responsive...

As previously mentioned, I've run into problems with Karmic (9.10) on my Opteron 246 box. Here ae details of the possible fixes.

• As mentioned here you can try: Tweaking the Linux kernel scheduler options:
  
  

  echo NEW_FAIR_SLEEPERS > /sys/kernel/debug/sched_features

• Increase nice-ness of X server:
  
  

  sudo renice -10 `pidof X`

• Use the real-time kernel: linux-image-rt
• Try messing with the kernel swappiness factor - e.g. see here

Not sure which one is any use....will add more I find 'em.

[14apr2010]: I think I've finally found the fix!