X-Git-Url: https://git.openstreetmap.org/chef.git/blobdiff_plain/58b2f9feddeb8e638a33cbaf4f775f602f57d2c6..5b3255591fe355642dcb2278831a394b2755019b:/roles/tilecache.rb

diff --git a/roles/tilecache.rb b/roles/tilecache.rb
index 38dea9b12..adce84808 100644
--- a/roles/tilecache.rb
+++ b/roles/tilecache.rb
@@ -12,10 +12,19 @@ default_attributes(
   :apt => {
     :sources => ["nginx"]
   },
+  :networking => {
+    :tcp_fastopen_key => "tile"
+  },
   :nginx => {
     :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 => {
@@ -25,7 +34,7 @@ default_attributes(
     :network_conntrack_max => {
       :comment => "Increase max number of connections tracked",
       :parameters => {
-        "net.netfilter.nf_conntrack_max" => "262142"
+        "net.netfilter.nf_conntrack_max" => "524288"
       }
     },
     :network_local_port_range => {
@@ -43,7 +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"
       }
     }
   }