diff options
| author | Con Kolivas <kernel@kolivas.org> | 2017-11-20 17:12:49 +1100 |
|---|---|---|
| committer | Con Kolivas <kernel@kolivas.org> | 2017-11-20 17:12:49 +1100 |
| commit | fbc0b4595aeccc2cc03e292ac8743565b3d3037b (patch) | |
| tree | 05f7868bbdfc57fc9a28019f85c6cc44c2cd1c37 /arch/x86/Kconfig | |
| parent | bebc6082da0a9f5d47a1ea2edc099bf671058bd4 (diff) | |
MuQSS version 0.162 CPU scheduler.4.14-muqss-162
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 2fdb23313dd5..e06a7b4e1dc4 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -947,10 +947,26 @@ config SCHED_SMT depends on SMP ---help--- SMT scheduler support improves the CPU scheduler's decision making - when dealing with Intel Pentium 4 chips with HyperThreading at a + when dealing with Intel P4/Core 2 chips with HyperThreading at a cost of slightly increased overhead in some places. If unsure say N here. +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" |