Re: [RFC] Add Arm cpu topology definition

On Thu, Jun 16, 2011 at 10:49:13AM +0200, Vincent Guittot wrote:

@@ -219,6 +219,24 @@ source "kernel/Kconfig.freezer"

menu "System Type"

+config SCHED_MC

• bool "Multi-core scheduler support"
• depends on SMP && ARM_CPU_TOPOLOGY
• default n
• help

•  Multi-core scheduler support improves the CPU scheduler's decision
  

•  making when dealing with multi-core CPU chips at a cost of slightly
  

•  increased overhead in some places. If unsure say N here.
  

+config SCHED_SMT

• bool "SMT scheduler support"
• depends on SMP && ARM_CPU_TOPOLOGY
• default n
• help

•  Improves the CPU scheduler's decision making when dealing with
  

•  MultiThreading at a cost of slightly increased overhead in some
  

•  places. If unsure say N here.
  

Quick question: the patch doesn't actually seem to use the SCHED_MC and SCHED_SMT config bits; is that actually correct?