1 files changed, 64 insertions, 0 deletions
diff --git a/charts.d/load_average.chart.sh b/charts.d/load_average.chart.sh
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+++ b/charts.d/load_average.chart.sh
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+#!/bin/sh
+
+load_average_update_every=5
+load_priority=100
+
+# this is an example charts.d collector
+# it is disabled by default.
+# there is no point to enable it, since netdata already
+# collects this information using its internal plugins.
+load_average_enabled=0
+
+load_average_check() {
+	# this should return:
+	#  - 0 to enable the chart
+	#  - 1 to disable the chart
+
+	if [ ${load_average_update_every} -lt 5 ]
+		then
+		# there is no meaning for shorter than 5 seconds
+		# the kernel changes this value every 5 seconds
+		load_average_update_every=5
+	fi
+
+	[ ${load_average_enabled} -eq 0 ] && return 1
+	return 0
+}
+
+load_average_create() {
+	# create a chart with 3 dimensions
+cat <<EOF
+CHART system.load '' "System Load Average" "load" load system.load line $[load_priority + 1] $load_average_update_every
+DIMENSION load1 '1 min' absolute 1 100
+DIMENSION load5 '5 mins' absolute 1 100
+DIMENSION load15 '15 mins' absolute 1 100
+EOF
+
+	return 0
+}
+
+load_average_update() {
+	# do all the work to collect / calculate the values
+	# for each dimension
+	# remember: KEEP IT SIMPLE AND SHORT
+
+	# here we parse the system average load
+	# it is decimal (with 2 decimal digits), so we remove the dot and
+	# at the definition we have divisor = 100, to have the graph show the right value
+	loadavg="`cat /proc/loadavg | sed -e "s/\.//g"`"
+	load1=`echo $loadavg | cut -d ' ' -f 1`
+	load5=`echo $loadavg | cut -d ' ' -f 2`
+	load15=`echo $loadavg | cut -d ' ' -f 3`
+
+	# write the result of the work.
+	cat <<VALUESEOF
+BEGIN system.load
+SET load1 = $load1
+SET load5 = $load5
+SET load15 = $load15
+END
+VALUESEOF
+
+	return 0
+}
+