From: Grant Slater <git@firefishy.com>
Date: Tue, 10 Mar 2015 10:13:01 +0000 (+0000)
Subject: Reduce CPU up scaling for IC systems due to cooling pressure
X-Git-Url: https://git.openstreetmap.org/chef.git/commitdiff_plain/90503ef133f53d9f2d45dea515904965e85222ce?ds=inline

Reduce CPU up scaling for IC systems due to cooling pressure
---

diff --git a/roles/ic.rb b/roles/ic.rb
index 2e63557d2..5724b798e 100644
--- a/roles/ic.rb
+++ b/roles/ic.rb
@@ -28,6 +28,15 @@ default_attributes(
         }
       }
     }
+  },
+  :sysfs => {
+    :cpufreq_ondemand_low => {
+      :comment => "Tune the ondemand CPU frequency governor for reduced scaling",
+      :parameters => {
+        "devices/system/cpu/cpufreq/ondemand/up_threshold" => "95",
+        "devices/system/cpu/cpufreq/ondemand/sampling_down_factor" => "1"
+      }
+    }
   }
 )