This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:
apport-collect 1368439
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1368439
Title:
Random high latency with KSM enabled and multiple CPU sockets
Status in “linux” package in Ubuntu:
Incomplete
Status in “qemu-kvm” package in Ubuntu:
New
Bug description:
If running a box with multiple CPU sockets and Ubuntu 14.04 Server
64-bit qemu-kvm with KSM enabled as by default, random high latency
occurs on network connections for VMs, as high as 4000ms - 5000ms. The
host also reports high IO wait times.
Disabling KSM fixed this for me.
I run the same setup on boxes with only 1 CPU socket and it's not an
issue.
qemu-kvm version: Installed: 2.0.0+dfsg-2ubuntu1.3
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1368439/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
