Dashboard memory warning

lib/mem_info.rb

@@ -0,0 +1,15 @@
+class MemInfo
+
+  # Total memory in kb. Only works on systems with /proc/meminfo.
+  # Returns nil if it cannot be determined.
+  def mem_total
+    @mem_total ||= begin
+      if s = `grep MemTotal /proc/meminfo`
+        /(\d+)/.match(s)[0].try(:to_i)
+      else
+        nil
+      end
+    end
+  end
+
+end