Max memory

web/app/Sensor/MemInfo.php

@@ -19,15 +19,16 @@ class MemInfo extends AbstractSensor {
         foreach ($records as $record) {
             $meminfo = $this->parseMeminfo($record->memory);
             $used[] = new Point(
-                    $record->time * 1000, $meminfo->used() / 1024);
+                    $record->time * 1000, $meminfo->used() / 1000);
             $used_cached[] = new Point(
                     $record->time * 1000,
-                    ($meminfo->used() + $meminfo->cached) / 1024);
+                    ($meminfo->used() + $meminfo->cached) / 1000);
         }
 
         return view("agent.meminfo", [
             "used" => $used,
-            "used_cached" => $used_cached]);
+            "used_cached" => $used_cached,
+            "server" => $this->getServer()]);
     }
 
     public function status() {

web/app/Server.php

@@ -134,12 +134,20 @@ class Server extends Model
     }
 
     public function meminfo() {
+        return round($this->memoryTotal() / 1000 / 1000) . " GB";
+    }
+
+    /**
+     *
+     * @return int total memory (in KB)
+     */
+    public function memoryTotal() {
         $record = $this->lastRecordContaining("memory");
         if ($record == null) {
-            return "";
+            return null;
         }
 
-        return round($this->parseMeminfo($record->memory)/1000/1000) . " GB";
+        return $this->parseMeminfo($record->memory);
     }
 
     const MEMINFO = "/^MemTotal:\\s+([0-9]+) kB$/m";

web/resources/views/agent/meminfo.blade.php

@@ -35,6 +35,27 @@
                             labelString: 'Memory [MB]'
                     }
                 }]
+            },
+            annotation: {
+		// Defines when the annotations are drawn.
+		// This allows positioning of the annotation relative to the other
+		// elements of the graph.
+		//
+		// Should be one of: afterDraw, afterDatasetsDraw, beforeDatasetsDraw
+		// See http://www.chartjs.org/docs/#advanced-usage-creating-plugins
+		drawTime: 'afterDatasetsDraw', // (default)
+
+		// Array of annotation configuration objects
+		// See below for detailed descriptions of the annotation options
+		annotations: [{
+			drawTime: 'afterDraw', // overrides annotation.drawTime if set
+                        type: 'line',
+                        mode: 'horizontal',
+                        scaleID: 'y-axis-0',
+                        value: '{{ $server->memoryTotal() / 1000 }}',
+                        borderColor: 'red',
+                        borderWidth: 2
+                }]
             }
         }
     });