1 files changed, 5 insertions, 2 deletions
diff --git a/munin/munin-cpufreq b/munin/munin-cpufreq
index dd40663..3a43fa9 100755
--- a/munin/munin-cpufreq
+++ b/munin/munin-cpufreq
@@ -29,6 +29,7 @@ def findmasters
 		h['cpunum'] = affected[0]
 		h['fieldname'] = "cpu#{affected[0]}"
 		h['label'] = affected.map{|c| "cpu#{c}"}.join(", ")
+		h['max'] = IO.read("/sys/devices/system/cpu/cpu#{cpunum}/cpufreq/cpuinfo_max_freq").to_i
 		masters.push(h)
 		affected.each{ |a| cpus.delete(a) }
 	end
@@ -36,13 +37,15 @@ def findmasters
 end
 
 def config
+	m = findmasters
+	max = m.map{ |i| i['max'] }.max
 	puts 'graph_title CPU frequency'
-	puts 'graph_args -l 0 --base 1000'
+	puts "graph_args -l 0 -l #{max} --base 1000"
 	puts 'graph_vlabel Hz'
 	puts 'graph_category system'
 	puts 'graph_period second'
 	puts 'graph_info Shows the CPU frequency of all installed CPUs'
-	findmasters.each do |m|
+	m.each do |m|
 		puts "#{m['fieldname']}.label #{m['label']}"
 		puts "#{m['fieldname']}.cdef #{m['fieldname']},1000,*"
 		puts "#{m['fieldname']}.info Hz"