Test Day:2009-09-17 Virtualization KSM

What to test?
This part of today's Fedora Test Day will focus on testing the KSM feature in Fedora 12.

If you come to this page after the test day is completed, your testing is still valuable, and you can use the information on this page to test KSM and provide feedback.

Who's available
Justin Forbes is your host for today.

The following people have also agreed to be available for testing, workarounds, bug fixes, and general discussion:


 * add your name here

What's needed to test

 * A fully updated Fedora 12 Rawhide machine. See instructions on the main test day page.
 * At least one guest image installed before the test day (suggested reading - Virtualization_Quick_Start)

Test Cases
Things to test, roughly in dependency order:

Thanks for your contribution to making Fedora better and less buggy!

Feedback
Michal Nowak
 * after turn off of all (two) KVM guests virt-manager frozen, known bug
 * ksm and ksmtuned are quite the same wrt shared pages and memory consumption... tested on Rawhide host with two Rawhide guests (one cloned from the other)
 * KSM - 1620 MB / ~20.000 shared pages
 * KSMtuned - 1600 / ~15.000 shared pages (surprisingly)
 * it is 2 GB system and some 500 MB of operating memory was still free after running two guests, shame I didn't know that the page merging is more often when the memory gets tighter...