change task rebalancing threshold as well (#8)

Thanks! * change task rebalancing threshold as well Zen also changes default task rebalancing threshold zen-kernel/zen-kernel@0542969
igo95862 · Feb 12, 2022 · ed3b5a5 · ed3b5a5
1 parent bd41cce
commit ed3b5a5
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/set-cfs-zen-tweaks.sh b/set-cfs-zen-tweaks.sh
@@ -22,7 +22,7 @@ MIN_GRANULARITY_MS=0.4
 WAKEUP_GRANULARITY_MS=0.5
 MIGRATION_COST_MS=0.25
 BANDWIDTH_SIZE_MS=3
-
+NR_MIGRATE=64
 
 echo "Targeted preemption latency for CPU-bound tasks: ${LATENCY_MS}ms"
 echo "Minimal preemption granularity for CPU-bound tasks: ${MIN_GRANULARITY_MS}ms"
@@ -43,17 +43,20 @@ MIN_GRANULARITY_NS_FILE="/sys/kernel/debug/sched/min_granularity_ns"
 WAKEUP_GRANULARITY_NS_FILE="/sys/kernel/debug/sched/wakeup_granularity_ns"
 MIGRATION_COST_NS_FILE="/sys/kernel/debug/sched/migration_cost_ns"
 BANDWIDTH_SIZE_US_FILE="/proc/sys/kernel/sched_cfs_bandwidth_slice_us"
+NR_MIGRATE_FILE="/sys/kernel/debug/sched/nr_migrate"
 
 if [ ! -f "$LATENCY_NS_FILE" ]; then
     echo "Detected kernel <5.13. Using legacy locations."
     LATENCY_NS_FILE="/proc/sys/kernel/sched_latency_ns"
     MIN_GRANULARITY_NS_FILE="/proc/sys/kernel/sched_min_granularity_ns"
     WAKEUP_GRANULARITY_NS_FILE="/proc/sys/kernel/sched_wakeup_granularity_ns"
     MIGRATION_COST_NS_FILE="/proc/sys/kernel/sched_migration_cost_ns"
+    NR_MIGRATE_FILE="/proc/sys/kernel/sched_nr_migrate"
 fi
 
 printf '%s' "$( call_gawk "int(${LATENCY_MS} * ${MODIFIER})" )" > "$LATENCY_NS_FILE"
 printf '%s' "$( call_gawk "int(${MIN_GRANULARITY_MS} * ${MODIFIER})" )" > "$MIN_GRANULARITY_NS_FILE"
 printf '%s' "$( call_gawk "int(${WAKEUP_GRANULARITY_MS} * ${MODIFIER})" )" > "$WAKEUP_GRANULARITY_NS_FILE"
 printf '%s' "$( call_gawk "int(${MIGRATION_COST_MS} * ${MODIFIER})" )" > "$MIGRATION_COST_NS_FILE"
 printf '%s' "$( call_gawk "int(${BANDWIDTH_SIZE_MS} * 1000)" )" > "$BANDWIDTH_SIZE_US_FILE"
+printf '%s' "$NR_MIGRATE" > "$NR_MIGRATE_FILE"