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Soft Real-Time Scheduling on Performance Asymmetric Multicore John M. Calandrino2
 

Summary: Soft Real-Time Scheduling on Performance Asymmetric Multicore
Platforms
John M. Calandrino2
, Dan Baumberger1
, Tong Li1
, Scott Hahn1
, and James H. Anderson2
1
Intel Corporation, Hillsboro, OR
2
Department of Computer Science, The University of North Carolina at Chapel Hill
Abstract
This paper discusses an approach for supporting soft real-
time periodic tasks in Linux on performance asymmetric
multicore platforms (AMPs). Such architectures consist
of a large number of processing units on one or several
chips, where each processing unit is capable of executing
the same instruction set at a different performance level.
We discuss deficiencies of Linux in supporting periodic
real-time tasks, particularly when cores are asymmetric, and

  

Source: Anderson, James - Department of Computer Science, University of North Carolina at Chapel Hill

 

Collections: Computer Technologies and Information Sciences