diff --git a/aos/ipc_lib/histogram.gnuplot b/aos/ipc_lib/histogram.gnuplot
new file mode 100755
index 0000000..3ab0868
--- /dev/null
+++ b/aos/ipc_lib/histogram.gnuplot
@@ -0,0 +1,22 @@
+#!/usr/bin/gnuplot
+
+n=1000 #number of intervals
+max=500. #max value
+min=0 #min value
+width=(max-min)/n #interval width
+#function used to map a value to the intervals
+hist(x,width)=width*floor(x/width)+width/2.0
+set boxwidth width*0.9
+set style fill solid 0.5 # fill style
+
+set logscale y
+set yrange [0.1:]
+set xrange [0:200]
+
+#count and plot
+plot "/tmp/st_csv" u (hist($1,width)):(1.0) smooth freq w boxes, \
+     "/tmp/pt_csv" u (hist($1,width)):(1.0) smooth freq w boxes, \
+     "/tmp/ft_csv" u (hist($1,width)):(1.0) smooth freq w boxes
+
+pause -1
+