tile: Kernel CPU scheduler preempt tuning

[chef.git] / roles / tile.rb

diff --git a/roles/tile.rb b/roles/tile.rb
index f24b1ff64b7b197188a6977bc84094d72ebdc515..5af10b8b18d6848e96a28945c93c93e9308d17ec 100644 (file)
--- a/roles/tile.rb
+++ b/roles/tile.rb
@@ -44,6 +44,13 @@ default_attributes(
       :parameters => {
         "net.core.somaxconn" => 10000
       }
+    },
+    :kernel_scheduler_tune => {
+      :comment => "Tune kernel scheduler preempt",
+      :parameters => {
+        "kernel.sched_min_granularity_ns" => 10000000,
+        "kernel.sched_wakeup_granularity_ns" => 15000000
+      }
     }
   },
   :tile => {