ksm polling frequency far too aggressive
Bug #550985 reported by
Dustin Kirkland
This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| qemu-kvm (Ubuntu) |
Fix Released
|
Medium
|
Dustin Kirkland | ||
Bug Description
Binary package hint: qemu-kvm
The default kernel same-page merging (KSM) polling frequency is set to 20 milliseconds. This is far too frequent (in my opinion).
A separate task should be opened against the kernel to ensure that the upstream default is sane.
But for now, let's change this to 2000ms when enabling KSM in the qemu-kvm upstart job. Note that an admin will be able to configure this in /etc/default/
Related branches
| Changed in qemu-kvm (Ubuntu): | |
| status: | New → In Progress |
| assignee: | nobody → Dustin Kirkland (kirkland) |
| importance: | Undecided → Medium |
Revision history for this message
| Launchpad Janitor (janitor) wrote | #1 |
| Changed in qemu-kvm (Ubuntu): | |
| status: | In Progress → Fix Released |
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This bug was fixed in the package qemu-kvm - 0.12.3+
---------------
qemu-kvm (0.12.3+
* debian/
raise the default sleep between kernel same-page merging
(KSM) from 20 milliseconds to 2000 milliseconds, LP: #550985
-- Dustin Kirkland <email address hidden> Mon, 29 Mar 2010 11:35:44 -0500