16 Jun
2011
16 Jun
'11
1:48 p.m.
On 16 June 2011 15:24, Christian Robottom Reis kiko@linaro.org wrote:
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?
The default config of the patch is to disable sched_mc and sched_smt. The 1st goal is to let each platform enable and test the feature. According to feedback, we could then change the default state of the configuration
-- Christian Robottom Reis | [+55] 16 9112 6430 | http://launchpad.net/~kiko Linaro Engineering VP | [ +1] 612 216 4935 | http://async.com.br/~kiko