linux-kernel - [RFC PATCH 05/12 v2] CONFIG for Workload Consolidation

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Date:	Mon, 12 May 2014 02:16:54 +0800
From:	Yuyang Du <yuyang.du@...el.com>
To:	mingo@...hat.com, peterz@...radead.org, rafael.j.wysocki@...el.com,
	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Cc:	arjan.van.de.ven@...el.com, len.brown@...el.com,
	alan.cox@...el.com, mark.gross@...el.com, morten.rasmussen@....com,
	vincent.guittot@...aro.org, rajeev.d.muralidhar@...el.com,
	vishwesh.m.rudramuni@...el.com, nicole.chalhoub@...el.com,
	ajaya.durg@...el.com, harinarayanan.seshadri@...el.com,
	jacob.jun.pan@...ux.intel.com, fengguang.wu@...el.com,
	yuyang.du@...el.com
Subject: [RFC PATCH 05/12 v2] CONFIG for Workload Consolidation

Add CONFIG_WORKLOAD_CONSOLIDATION in arch/x86/Kconfig. This CONFIG enables
and disables CPU workload consolidation in scheduler's load balancing.

Signed-off-by: Yuyang Du <yuyang.du@...el.com>
---
 arch/x86/Kconfig |   10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 9bfac8d..0999c16 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -808,6 +808,16 @@ config CPU_CONCURRENCY
 	  load balancing for power efficiency without sacrificing performance.
 	  If unsure say N here.
 
+config WORKLOAD_CONSOLIDATION
+	bool "CPU Workload Consolidation"
+	default n
+	depends on CPU_CONCURRENCY
+	---help---
+	  CPU Workload Consolidation is a new CPU PM module, which uses the CPU
+	  concurrency of the CPU, and allows asymmetric concurrency across CPUs to
+	  reduce the SW and HW overhead to increase load balance efficiency and
+	  conserve energy. If unsure say N here.
+
 source "kernel/Kconfig.preempt"
 
 config X86_UP_APIC
-- 
1.7.9.5

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