HMP: Implement task packing for small tasks in HMP systems

[firefly-linux-kernel-4.4.55.git] / arch / arm / Kconfig

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 2a5f5b8c385c3f4ae21dea3f3587a3da73147a37..e79dfda6644a947415cce6f8301122190a2dcfe9 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1578,6 +1578,18 @@ config HMP_FREQUENCY_INVARIANT_SCALE
          migration strategy to interact more predictably with CPUFreq's
          asynchronous compute capacity changes.
 
+config SCHED_HMP_LITTLE_PACKING
+       bool "Small task packing for HMP"
+       depends on SCHED_HMP
+       default n
+       help
+         Allows the HMP Scheduler to pack small tasks into CPUs in the
+         smallest HMP domain.
+         Controlled by two sysfs files in sys/kernel/hmp.
+         packing_enable: 1 to enable, 0 to disable packing. Default 1.
+         packing_limit: runqueue load ratio where a RQ is considered
+           to be full. Default is NICE_0_LOAD * 9/8.
+
 config HAVE_ARM_SCU
        bool
        help