Ubuntu
qemu-kvm package

  1. Bug #1368439
  2. Comment #6

Comment 6 for bug 1368439

Revision history for this message
Serge Hallyn (serge-hallyn) wrote :

Is this still an issue for you?

There were some actual KSM corruption bugs which were somewhat recently fixed.

KSM in general wil use more CPU in order to reduce memory contention, so your results are not necessarily unexpected. Aside from turning KSM off, you can also reduce the KSM frequency.

There are some other tuning hints at http://www.linux-kvm.org/page/Tuning_Kernel