Add job stats graph

plugins/sge/sge_job_stats

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+# Graphs the number of running and waiting jobs, as well as when they
+# are submitted.
+#
+# Tested with Son of Gridengine.
+
+if [ "$1" = "config" ]
+then
+	echo graph_title SGE gridengine jobs
+	echo graph_vlabel count
+	echo graph_category processes
+	echo running.label Running jobs
+	echo running.type GAUGE
+	echo running.draw AREA
+	echo waiting.label Queued jobs
+	echo waiting.type GAUGE
+	echo waiting.draw STACK
+	echo maxnum.label Submitted jobs
+	echo maxnum.type DERIVE
+	echo maxnum.draw LINE2
+	echo maxnum.min 0
+
+	exit 0
+fi
+
+. /opt/sge/default/common/settings.sh
+
+qstat -u '*' | awk '
+	BEGIN{maxnum = 0; running = 0; waiting = 0}
+	/^ /{
+		maxnum = (maxnum > $1 ? maxnum : $1);
+		if ( $5 == "r" ) {
+			running += 1;
+		} else {
+			waiting += 1;
+		}
+	}
+	END { printf("running.value %d\nwaiting.value %d\nmaxnum.value %d\n", running, waiting, maxnum); }'