Re: Migrated CFS task getting an unfair advantage

From: Byungchul Park
Date: Wed Mar 09 2016 - 18:48:39 EST

On Wed, Mar 09, 2016 at 11:00:42AM -0800, Andrew Hunter wrote:
> At Google, we essentially reverted 88ec22d and the subsequent tweaks
> to it, keeping vruntime absolute always , instead using
> task_move_group_fair to change the basis of relative min_vruntime

Hello, Andrew

I am curious about how it can be done with absolute value. :-)

> between cpus. We found this made it a lot easier to reason about and
> work with corss-cpu computations. I could post the patch if it would
> be of interest...

I am interested in it.