Oh and if you want to add the throttling info to the cpu graph:
########################################################################
# Extract CPU information
# Page: 1
# Information Status Statistics
# - cpu frequency - yes - no
# - cpu voltage - yes - no
# - cpu load 1, 5, 15 - yes - yes
# - cpu scaling governor - yes - no
########################################################################
dynamic.1.name=cpu_frequency
dynamic.1.source=/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq
dynamic.1.regexp=(.*)
dynamic.1.postprocess=$1/1000
dynamic.1.rrd=
dynamic.2.name=cpu_voltage
dynamic.2.source=vcgencmd measure_volts core
dynamic.2.regexp=(\d+.\d+)V
dynamic.2.postprocess=
dynamic.2.rrd=
dynamic.3.name=load1,load5,load15
dynamic.3.source=/proc/loadavg
dynamic.3.regexp=^(\S+)\s(\S+)\s(\S+)
dynamic.3.postprocess=
dynamic.3.rrd=GAUGE
dynamic.4.name=scaling_governor
dynamic.4.source=/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
dynamic.4.regexp=(.*)
dynamic.4.postprocess=
dynamic.4.rrd=
dynamic.26.name=undervolted
dynamic.26.source=vcgencmd get_throttled
dynamic.26.regexp=throttled=(.*)
dynamic.26.postprocess=$1&0x1
dynamic.26.rrd=
dynamic.27.name=capped
dynamic.27.source=vcgencmd get_throttled
dynamic.27.regexp=throttled=(.*)
dynamic.27.postprocess=$1&0x2
dynamic.27.rrd=
dynamic.28.name=throttled
dynamic.28.source=vcgencmd get_throttled
dynamic.28.regexp=throttled=(.*)
dynamic.28.postprocess=$1&0x4
dynamic.28.rrd=
dynamic.29.name=hasundervolted
dynamic.29.source=vcgencmd get_throttled
dynamic.29.regexp=throttled=(.*)
dynamic.29.postprocess=$1&0x10000
dynamic.29.rrd=
dynamic.30.name=hascapped
dynamic.30.source=vcgencmd get_throttled
dynamic.30.regexp=throttled=(.*)
dynamic.30.postprocess=$1&0x20000
dynamic.30.rrd=
dynamic.31.name=hasthrottled
dynamic.31.source=vcgencmd get_throttled
dynamic.31.regexp=throttled=(.*)
dynamic.31.postprocess=$1&0x40000
dynamic.31.rrd=
static.9.name=max_proc
static.9.source=nproc
static.9.regexp=(.*)
static.9.postprocess=$1 + 1
web.status.1.content.1.name=CPU
web.status.1.content.1.icon=cpu.png
#web.status.1.content.1.line.1="Loads: <b>" + data.load1 + "</b> [1min] - <b>" + data.load5 + "</b> [5min] - <b>" + data.load15 + "</b> [15min]"
web.status.1.content.1.line.1=JustGageBar("Load", "1min", 0, data.load1, data.max_proc, 100, 80)+" "+JustGageBar("Load", "5min", 0, data.load5, data.max_proc, 100, 80)+" "+JustGageBar("Load", "15min", 0, data.load15, data.max_proc, 100, 80)
web.status.1.content.1.line.2="CPU frequency: <b>" + data.cpu_frequency + "MHz</b> Voltage: <b>" + data.cpu_voltage + "V</b>"
web.status.1.content.1.line.3="Scaling governor: <b>" + data.scaling_governor + "</b>"
web.status.1.content.1.line.4="<table class='table'><thead><tr><th>Power</th><th>Current Status</th><th>Previous Status</tr></thead><tbody>"
web.status.1.content.1.line.5="<tr>"
web.status.1.content.1.line.6="<td>Under Voltage:</td><td>" + Label(data.undervolted,"==0","no","success") + Label(data.undervolted,"!=0","yes","danger")+ "</td><td>" + Label(data.hasundervolted,"==0","no","success") + Label(data.hasundervolted,"!=0","yes","danger")+ "</td>"
web.status.1.content.1.line.7="</tr>"
web.status.1.content.1.line.8="<tr>"
web.status.1.content.1.line.9="<td>Throttled:</td><td>" + Label(data.throttled,"==0","no","success") + Label(data.throttled,"!=0","yes","danger")+ "</td><td>" + Label(data.hasthrottled,"==0","no","success") + Label(data.hasthrottled,"!=0","yes","danger")+ "</td>"
web.status.1.content.1.line.10="</tr>"
web.status.1.content.1.line.11="<tr>"
web.status.1.content.1.line.12="<td>Frequency Capped:</td><td>" + Label(data.capped,"==0","no","success") + Label(data.capped,"!=0","yes","danger")+ "</td><td>" + Label(data.hascapped,"==0","no","success") + Label(data.hascapped,"!=0","yes","danger")+ "</td>"
web.status.1.content.1.line.13="</tr>"
web.status.1.content.1.line.14="</tbody></table>"
#web.status.1.content.1.line.4=InsertHTML("/addons/top3/top3.html")
web.statistics.1.content.1.name=CPU Loads
web.statistics.1.content.1.graph.1=load1
web.statistics.1.content.1.graph.2=load5
web.statistics.1.content.1.graph.3=load15
web.statistics.1.content.1.ds_graph_options.load1.label=Load 1min
web.statistics.1.content.1.ds_graph_options.load5.label=Load 5min
web.statistics.1.content.1.ds_graph_options.load15.label=Load 15min