[ovs-dev] [PATCH 2/2] bond: Change rebalance ratio to be more fair

Ben Pfaff blp at nicira.com
Fri Jan 4 22:17:15 UTC 2013


On Thu, Dec 20, 2012 at 09:55:06PM +0000, Zoltan Kiss wrote:
> The old algorithm tries to converge to 0, despite it would mean a very
> unbalanced situation. 1 is a more desirable goal. Fortunately rebalancing never
> worked, so this never caused a problem. But my previous patch needs it.
> It was tested together with my previous patch.
> 
> Signed-off-by: Zoltan Kiss <zoltan.kiss at citrix.com>

One of the goals of the heuristic here (whether it was correctly
implemented or not) was to include hysteresis, that is, to avoid
moving for tiny improvements.  As I read it, your new heuristic here
doesn't do that, so it will move for an improvement from 1.001 to
0.99999.  Could you add some hysteresis?



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