Hubertus/Haoqiang,Chandra, Vivek, could you give an estimate of how many distinct classes CPU, mem and listen queue controllers can support ?
There are no limitations on the number of classes that the CPU scheduler can support. We certainly should be able to sustain 100 classes.
Scheduling decisions in schedule() are O(1) and do not depend on the number of classes in the system. The occasional load balancing and effective share computation (necessary to properly deal with unused cycles guaranteed to a class and reproportionment to its siblings and parent) is dependent on the number of classes though. However, there in no scalability concern there ...
-- Hubertus
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