Adjust min task util for boost / coloc

Signed-off-by: Tyler Nijmeh <tylernij@gmail.com>

README.md

@@ -86,14 +86,8 @@ Set the minimum task scheduling period to 2.5ms. With kernel.sched_latency_ns se
 Increase the time that a task is considered to be cache hot. According to RedHat, increasing this tunable reduces the number of task migrations. This should reduce time spent balancing tasks and increase per-task performance.
 See RedHat: https://www.redhat.com/files/summit/session-assets/2018/Performance-analysis-and-tuning-of-Red-Hat-Enterprise-Linux-Part-1.pdf
 
-### kernel.sched_min_task_util_for_boost: 35
-This value effects if tasks should be migrated to a higher performant CPU if it's utilization is above this amount (during sched_boost). Allow tasks to be migrated upwards if the user is triggering a touch boost and the task is above 35% utilization.
-
-### kernel.sched_min_task_util_for_colocation: 25
-This value is the same as the former, except it occurs only for top-app tasks (which are of greater priority than background tasks). Lower this value a bit to use big clusters more for top-app tasks.
-
-### kernel.sched_min_task_util_for_boost_colocation: 35
-This is the same as kernel.sched_min_task_util_for_boost for older kernel versions.
+### kernel.sched_min_task_util_for_colocation: 35 --> 20
+This value determines when top-app tasks (which are of greater priority than background tasks) can be sched_boosted. Lower this value a bit to use big clusters more for top-app tasks.
 
 ### kernel.sched_nr_migrate: 32 --> 128
 When migrating tasks between CPUs, allow the scheduler to migrate twice as many as usual. This should increase scheduling latency marginally, but increase the performance of SCHED_OTHER tasks. In testing, `cyclictest` reported a 2 microsecond increase in average latency, an a **decrease** in maximum latency of SCHED_FIFO tasks.

system/bin/ktweak

@@ -117,9 +117,7 @@ write /proc/sys/kernel/sched_tunable_scaling 0
 write /proc/sys/kernel/sched_latency_ns 10000000
 write /proc/sys/kernel/sched_min_granularity_ns 2500000
 write /proc/sys/kernel/sched_migration_cost_ns 1000000
-write /proc/sys/kernel/sched_min_task_util_for_boost 35
-write /proc/sys/kernel/sched_min_task_util_for_colocation 25
-write /proc/sys/kernel/sched_min_task_util_for_boost_colocation 35
+write /proc/sys/kernel/sched_min_task_util_for_colocation 20
 write /proc/sys/kernel/sched_nr_migrate 128
 write /proc/sys/kernel/sched_schedstats 0
 write /proc/sys/kernel/sched_wakeup_granularity_ns 10000000