gorynych: Tune md sync performance so as not to kill system performance
authorGrant Slater <git@firefishy.com>
Mon, 5 Aug 2013 10:20:51 +0000 (11:20 +0100)
committerGrant Slater <git@firefishy.com>
Mon, 5 Aug 2013 10:20:51 +0000 (11:20 +0100)
roles/gorynych.rb

index 9d1119a335b2dbf9cc5a8cc964221c323b5993ab..c07d7059218f94097dfc64811c5946fda9fab23b 100644 (file)
@@ -14,6 +14,15 @@ default_attributes(
       }
     }
   },
+  :sysfs => {
+    :md_tune => {
+      :comment => "Tune the md sync performance so as not to kill system performance",
+      :parameters => {
+        "block/md0/md/sync_speed_min" => "10",
+        "block/md0/md/sync_speed_max" => "10000"
+      }
+    }
+  },
   :squid => {
     :cache_mem => "5800 MB",
     :cache_dir => "coss /store/squid/coss-01 128000 block-size=8192 max-size=262144 membufs=80"