tilecache: minimal swapout

[chef.git] / roles / tilecache.rb

diff --git a/roles/tilecache.rb b/roles/tilecache.rb
index a2e595f3bf93b20a9821fcb0487f3bbc2fc2904f..adce84808c8130785e12e069cd6d73079edd3afa 100644 (file)
--- a/roles/tilecache.rb
+++ b/roles/tilecache.rb
@@ -19,6 +19,12 @@ default_attributes(
     :access_log => false
   },
   :sysctl => {
+    :sockets => {
+      :comment => "Increase size of connection queue",
+      :parameters => {
+        "net.core.somaxconn" => 10000
+      }
+    },
     :network_conntrack_time_wait => {
       :comment => "Only track completed connections for 30 seconds",
       :parameters => {
@@ -46,7 +52,14 @@ default_attributes(
     :squid_swappiness => {
       :comment => "Prefer not to swapout to free memory",
       :parameters => {
-        "vm.swappiness" => "30"
+        "vm.swappiness" => "1"
+      }
+    },
+    :sched_wakeup => {
+      :comment => "Tune scheduler",
+      :parameters => {
+        "kernel.sched_min_granularity_ns" => "10000000",
+        "kernel.sched_wakeup_granularity_ns" => "15000000"
       }
     }
   }