Test Day:2009-09-17 Virtualization KSM

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Things to test, roughly in dependency order:
 
Things to test, roughly in dependency order:
  
{{admon/note|FIXME|List test cases for the feature.}}
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{|
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! Test !! Method
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|-
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| Installation
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|| Install F12 on the host, then install multiple virtual machines of the same type.  To speed up this process you can install a single virtual machine and use virt-clone to make additional virtual machines for testing.  For KSM to properly function you need to ensure you have the latest qemu installed (version should be 0.10.92-4.fc12).
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If there are any installation errors or dependency problems, these are serious bugs and should be reported.
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| Start up
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|| First start the ksm service. Start up just one of the virtual machines.  Take a look at /sys/kernel/mm/ksm/pages_shared.  There should be a non zero value here, the actual value is less important, but take note of it.  Next start up additional virtual machines and check /sys/kernel/mm/ksm/pages_shared again.  The value should increase over a single running guest.
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|-
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| ksmtuned
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|| Try shut down all of the virtual machines and start the ksmtuned service.  Once the service has started, restart the virtual machines one at a time.  How does the ksm performance compare to ksm without ksmtuned?  If there is a drastic difference for the better or the worse, please mention it in IRC.
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Thanks for your contribution to making Fedora better and less buggy!
  
 
=== Issues that were identified ===
 
=== Issues that were identified ===

Revision as of 03:16, 17 September 2009

DATE TIME WHERE
Thursday Sep 17, 2009 All day #fedora-test-day (webchat)

Contents

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

Test Cases

Things to test, roughly in dependency order:

Test Method
Installation Install F12 on the host, then install multiple virtual machines of the same type. To speed up this process you can install a single virtual machine and use virt-clone to make additional virtual machines for testing. For KSM to properly function you need to ensure you have the latest qemu installed (version should be 0.10.92-4.fc12).

If there are any installation errors or dependency problems, these are serious bugs and should be reported.

Start up First start the ksm service. Start up just one of the virtual machines. Take a look at /sys/kernel/mm/ksm/pages_shared. There should be a non zero value here, the actual value is less important, but take note of it. Next start up additional virtual machines and check /sys/kernel/mm/ksm/pages_shared again. The value should increase over a single running guest.
ksmtuned Try shut down all of the virtual machines and start the ksmtuned service. Once the service has started, restart the virtual machines one at a time. How does the ksm performance compare to ksm without ksmtuned? If there is a drastic difference for the better or the worse, please mention it in IRC.

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

Issues that were identified

Tester Description Bug references Status
#XXXXX ASSIGNED