diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/alpha/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm64/Kconfig | 2 | ||||
| -rw-r--r-- | arch/powerpc/Kconfig | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/sched.c | 5 | ||||
| -rw-r--r-- | arch/x86/Kconfig | 18 |
6 files changed, 26 insertions, 5 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index ef179033a7c2..14b576a531ad 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -665,6 +665,8 @@ config HZ default 1200 if HZ_1200 default 1024 +source "kernel/Kconfig.MuQSS" + config SRM_ENV tristate "SRM environment through procfs" depends on PROC_FS diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 96dab76da3b3..78611fa96178 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1237,6 +1237,8 @@ config SCHED_SMT MultiThreading at a cost of slightly increased overhead in some places. If unsure say N here. +source "kernel/Kconfig.MuQSS" + config HAVE_ARM_SCU bool help diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index e688dfad0b72..000a2e0d01ea 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -911,6 +911,8 @@ config SCHED_SMT MultiThreading at a cost of slightly increased overhead in some places. If unsure say N here. +source "kernel/Kconfig.MuQSS" + config NR_CPUS int "Maximum number of CPUs (2-4096)" range 2 4096 diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index e2a412113359..a8fa2e3c05a6 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -878,6 +878,8 @@ config SCHED_SMT when dealing with POWER5 cpus at a cost of slightly increased overhead in some places. If unsure say N here. +source "kernel/Kconfig.MuQSS" + config PPC_DENORMALISATION bool "PowerPC denormalisation exception handling" depends on PPC_BOOK3S_64 diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index f18d5067cd0f..fe489fc01c73 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -52,11 +52,6 @@ static struct timer_list spusched_timer; static struct timer_list spuloadavg_timer; /* - * Priority of a normal, non-rt, non-niced'd process (aka nice level 0). - */ -#define NORMAL_PRIO 120 - -/* * Frequency of the spu scheduler tick. By default we do one SPU scheduler * tick for every 10 CPU scheduler ticks. */ diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 5e8949953660..f9de8804db91 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1004,6 +1004,22 @@ config NR_CPUS config SCHED_SMT def_bool y if SMP +config SMT_NICE + bool "SMT (Hyperthreading) aware nice priority and policy support" + depends on SCHED_MUQSS && SCHED_SMT + default y + ---help--- + Enabling Hyperthreading on Intel CPUs decreases the effectiveness + of the use of 'nice' levels and different scheduling policies + (e.g. realtime) due to sharing of CPU power between hyperthreads. + SMT nice support makes each logical CPU aware of what is running on + its hyperthread siblings, maintaining appropriate distribution of + CPU according to nice levels and scheduling policies at the expense + of slightly increased overhead. + + If unsure say Y here. + + config SCHED_MC def_bool y prompt "Multi-core scheduler support" @@ -1034,6 +1050,8 @@ config SCHED_MC_PRIO If unsure say Y here. +source "kernel/Kconfig.MuQSS" + config UP_LATE_INIT def_bool y depends on !SMP && X86_LOCAL_APIC |