20 Feb
2015
20 Feb
'15
11:52 a.m.
On Fri, Feb 20, 2015 at 11:34:47AM +0000, Peter Zijlstra wrote:
On Thu, Feb 19, 2015 at 12:49:40PM +0000, Morten Rasmussen wrote:
Also, it still not clear why patch 10 uses relative capacity reduction instead of absolute capacity available to CFS tasks.
As present in your asymmetric big and small systems? Yes it would be unfortunate to migrate a task to an idle small core when the big core is still faster, even if reduced by rt/irq work.
Yes, exactly. I don't think it would cause any harm for symmetric cases to use absolute capacity instead. Am I missing something?