diff options
Diffstat (limited to 'arch/arm64/Kconfig')
| -rw-r--r-- | arch/arm64/Kconfig | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index f3b3e41b6975..133eb8e68202 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -203,102 +203,6 @@ config SCHED_SMT MultiThreading at a cost of slightly increased overhead in some places. If unsure say N here. -config DISABLE_CPU_SCHED_DOMAIN_BALANCE - bool "(EXPERIMENTAL) Disable CPU level scheduler load-balancing" - help - Disables scheduler load-balancing at CPU sched domain level. - -config SCHED_HMP - bool "(EXPERIMENTAL) Heterogenous multiprocessor scheduling" - depends on DISABLE_CPU_SCHED_DOMAIN_BALANCE && SCHED_MC && FAIR_GROUP_SCHED && !SCHED_AUTOGROUP - help - Experimental scheduler optimizations for heterogeneous platforms. - Attempts to introspectively select task affinity to optimize power - and performance. Basic support for multiple (>2) cpu types is in place, - but it has only been tested with two types of cpus. - There is currently no support for migration of task groups, hence - !SCHED_AUTOGROUP. Furthermore, normal load-balancing must be disabled - between cpus of different type (DISABLE_CPU_SCHED_DOMAIN_BALANCE). - -config SCHED_HMP_PRIO_FILTER - bool "(EXPERIMENTAL) Filter HMP migrations by task priority" - depends on SCHED_HMP - help - Enables task priority based HMP migration filter. Any task with - a NICE value above the threshold will always be on low-power cpus - with less compute capacity. - -config SCHED_HMP_PRIO_FILTER_VAL - int "NICE priority threshold" - default 5 - depends on SCHED_HMP_PRIO_FILTER - -config HMP_FAST_CPU_MASK - string "HMP scheduler fast CPU mask" - depends on SCHED_HMP - help - Leave empty to use device tree information. - Specify the cpuids of the fast CPUs in the system as a list string, - e.g. cpuid 0+1 should be specified as 0-1. - -config HMP_SLOW_CPU_MASK - string "HMP scheduler slow CPU mask" - depends on SCHED_HMP - help - Leave empty to use device tree information. - Specify the cpuids of the slow CPUs in the system as a list string, - e.g. cpuid 0+1 should be specified as 0-1. - -config HMP_VARIABLE_SCALE - bool "Allows changing the load tracking scale through sysfs" - depends on SCHED_HMP - help - When turned on, this option exports the thresholds and load average - period value for the load tracking patches through sysfs. - The values can be modified to change the rate of load accumulation - and the thresholds used for HMP migration. - The load_avg_period_ms is the time in ms to reach a load average of - 0.5 for an idle task of 0 load average ratio that start a busy loop. - The up_threshold and down_threshold is the value to go to a faster - CPU or to go back to a slower cpu. - The {up,down}_threshold are devided by 1024 before being compared - to the load average. - For examples, with load_avg_period_ms = 128 and up_threshold = 512, - a running task with a load of 0 will be migrated to a bigger CPU after - 128ms, because after 128ms its load_avg_ratio is 0.5 and the real - up_threshold is 0.5. - This patch has the same behavior as changing the Y of the load - average computation to - (1002/1024)^(LOAD_AVG_PERIOD/load_avg_period_ms) - but it remove intermadiate overflows in computation. - -config HMP_FREQUENCY_INVARIANT_SCALE - bool "(EXPERIMENTAL) Frequency-Invariant Tracked Load for HMP" - depends on HMP_VARIABLE_SCALE && CPU_FREQ - help - Scales the current load contribution in line with the frequency - of the CPU that the task was executed on. - In this version, we use a simple linear scale derived from the - maximum frequency reported by CPUFreq. - Restricting tracked load to be scaled by the CPU's frequency - represents the consumption of possible compute capacity - (rather than consumption of actual instantaneous capacity as - normal) and allows the HMP migration's simple threshold - 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 NR_CPUS int "Maximum number of CPUs (2-32)" range 2 32 |