diff --git a/ktweak b/ktweak index 3bee4fa..94d281a 100644 --- a/ktweak +++ b/ktweak @@ -8,7 +8,7 @@ BRANCH="latency" UINT_MAX="4294967295" # Duration in nanoseconds of one scheduling period -SCHED_PERIOD="$(1 * 1000 * 1000)" +SCHED_PERIOD="$(18 * 1000 * 1000)" # How many tasks should we have at a maximum in one scheduling period SCHED_TASKS="10" @@ -64,10 +64,10 @@ write /proc/sys/kernel/sched_tunable_scaling 0 write /proc/sys/kernel/sched_latency_ns "$SCHED_PERIOD" # Schedule this ratio of tasks in the guarenteed sched period -write /proc/sys/kernel/sched_min_granularity_ns "$((SCHED_PERIOD / SCHED_TASKS))" +write /proc/sys/kernel/sched_min_granularity_ns "$((SCHED_PERIOD / SCHED_TASKS) - 300000)" # Require preeptive tasks to surpass half of a sched period in vmruntime -write /proc/sys/kernel/sched_wakeup_granularity_ns "$((SCHED_PERIOD / 2))" +write /proc/sys/kernel/sched_wakeup_granularity_ns "$((SCHED_PERIOD / 6))" # Reduce the frequency of task migrations write /proc/sys/kernel/sched_migration_cost_ns 5000000 @@ -121,10 +121,10 @@ write /proc/sys/vm/panic_on_oom 0 write /proc/sys/vm/highmem_is_dirtyable 1 # Require dirty memory to stay in memory for longer -write /proc/sys/vm/dirty_expire_centisecs 3000 +write /proc/sys/vm/dirty_expire_centisecs 1000 # Run the dirty memory flusher threads less often -write /proc/sys/vm/dirty_writeback_centisecs 3000 +write /proc/sys/vm/dirty_writeback_centisecs 2000 # Disable read-ahead for swap devices write /proc/sys/vm/page-cluster 0 @@ -204,7 +204,7 @@ do write "$governor/rate_limit_us" 0 # Jump to hispeed frequency at this load percentage - write "$governor/hispeed_load" 75 + write "$governor/hispeed_load" 95 write "$governor/hispeed_freq" "$UINT_MAX" done @@ -216,7 +216,7 @@ do write "$governor/min_sample_time" 0 # Jump to hispeed frequency at this load percentage - write "$governor/go_hispeed_load" 75 + write "$governor/go_hispeed_load" 95 write "$governor/hispeed_freq" "$UINT_MAX" done