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  1. Bug #1177431
  2. Comment #1

Comment 1 for bug 1177431

Revision history for this message
Stefan Bader (smb) wrote :

The EC2 kernel also had this revert applied:

Author: John Johansen <email address hidden>
Date: Fri Aug 20 10:16:53 2010 -0700

    UBUNTU: SAUCE: Revert "sched: update load count only once per cpu in 10 tick

    BugLink: http://bugs.launchpad.net/bugs/574910

The final fix for that would be those two patches below. But as the ec2 problem only was caused by the fact that those kernels were not tickless, we should wait for real issues with the replacing kernels being tickless. The revert plus the two other patches were upstream in Karmic and later but we never had good reproducers.

Author: Peter Zijlstra <email address hidden>
Date: Thu Apr 22 21:50:19 2010 +0200

    sched: Cure load average vs NO_HZ woes

Author: Peter Zijlstra <email address hidden>
Date: Tue Nov 30 19:48:45 2010 +0100

    sched: Cure more NO_HZ load average woes