sched: CFS: Tune CFS parameters as per linux-zen

* Values taken from zen-kernel/zen-kernel@6b3b0b1 Signed-off-by: EndCredits <endcredits@crepuscular-aosp.icu>
EndCredits · May 16, 2023 · 5d51348 · 5d51348
1 parent 94c1116
commit 5d51348
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Showing 2 changed files with 7 additions and 7 deletions.
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
@@ -67,7 +67,7 @@ const_debug unsigned int sysctl_sched_features =
  * Number of tasks to iterate in a single balance run.
  * Limited because this is done with IRQs disabled.
  */
-const_debug unsigned int sysctl_sched_nr_migrate = 32;
+const_debug unsigned int sysctl_sched_nr_migrate = 64;
 
 /*
  * period over which we measure -rt task CPU usage in us.

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
@@ -65,13 +65,13 @@ enum sched_tunable_scaling sysctl_sched_tunable_scaling = SCHED_TUNABLESCALING_L
  *
  * (default: 0.75 msec * (1 + ilog(ncpus)), units: nanoseconds)
  */
-unsigned int sysctl_sched_min_granularity			= 750000ULL;
-static unsigned int normalized_sysctl_sched_min_granularity	= 750000ULL;
+unsigned int sysctl_sched_min_granularity			= 400000ULL;
+static unsigned int normalized_sysctl_sched_min_granularity	= 400000ULL;
 
 /*
  * This value is kept at sysctl_sched_latency/sysctl_sched_min_granularity
  */
-static unsigned int sched_nr_latency = 8;
+static unsigned int sched_nr_latency = 10;
 
 /*
  * After fork, child runs first. If set to 0 (default) then
@@ -88,8 +88,8 @@ unsigned int sysctl_sched_child_runs_first __read_mostly;
  *
  * (default: 1 msec * (1 + ilog(ncpus)), units: nanoseconds)
  */
-unsigned int sysctl_sched_wakeup_granularity			= 1000000UL;
-static unsigned int normalized_sysctl_sched_wakeup_granularity	= 1000000UL;
+unsigned int sysctl_sched_wakeup_granularity			= 500000UL;
+static unsigned int normalized_sysctl_sched_wakeup_granularity	= 500000UL;
 
 const_debug unsigned int sysctl_sched_migration_cost	= 500000UL;
 DEFINE_PER_CPU_READ_MOSTLY(int, sched_load_boost);
@@ -123,7 +123,7 @@ int __weak arch_asym_cpu_priority(int cpu)
  *
  * (default: 5 msec, units: microseconds)
  */
-unsigned int sysctl_sched_cfs_bandwidth_slice		= 5000UL;
+unsigned int sysctl_sched_cfs_bandwidth_slice		= 3000UL;
 #endif
 
 /* Migration margins */