diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/alpha/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 |
4 files changed, 22 insertions, 5 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 584a6e114853..2d497c3710f2 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -670,6 +670,8 @@ 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/powerpc/Kconfig b/arch/powerpc/Kconfig index 2890d36eb531..deeedd7f4de8 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -772,6 +772,8 @@ 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 9fcccb4490b9..7f2b6c226eed 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -65,11 +65,6 @@ 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 68261430fe6e..6e4b1b310f6c 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1018,6 +1018,22 @@ 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" @@ -1048,6 +1064,8 @@ 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 |