diff --git a/Optimal_bounding_box/benchmark/Optimal_bounding_box/data/times.txt b/Optimal_bounding_box/benchmark/Optimal_bounding_box/data/times.txt
new file mode 100644
index 00000000000..2ef3396b31b
--- /dev/null
+++ b/Optimal_bounding_box/benchmark/Optimal_bounding_box/data/times.txt
@@ -0,0 +1,5 @@
+nb_vertices with_ch without_ch
+2775 0.037331 0.327787
+16670 0.118251 1.96901
+66692 0.362664 7.75459
+266780 1.20984 32.166
diff --git a/Optimal_bounding_box/benchmark/Optimal_bounding_box/draw_benchmark_graph.py b/Optimal_bounding_box/benchmark/Optimal_bounding_box/draw_benchmark_graph.py
index 0bbb61d55b5..8fc416ac260 100644
--- a/Optimal_bounding_box/benchmark/Optimal_bounding_box/draw_benchmark_graph.py
+++ b/Optimal_bounding_box/benchmark/Optimal_bounding_box/draw_benchmark_graph.py
@@ -1,18 +1,19 @@
 import matplotlib.pyplot as plt
 import numpy as np
 
-data = np.loadtxt("build/data/times.txt", skiprows = 1)
+#path-to-benchmarks
+benchmarkfile='data/times.txt'
+
+data = np.loadtxt(benchmarkfile, skiprows = 1)
 
 x = data[:, 0]
 y1 = data[:, 1]
 y2 = data[:, 2]
 
-
-
 plt.plot(x, y1, 'go--', label='with convex hull')
 plt.plot(x, y2, 'ro--', label='without convex hull')
 legend = plt.legend(loc='best')
 plt.xlabel('#vertices')
 plt.ylabel('seconds')
 
-plt.show()
\ No newline at end of file
+plt.show()
diff --git a/Optimal_bounding_box/benchmark/Optimal_bounding_box/readme.txt b/Optimal_bounding_box/benchmark/Optimal_bounding_box/readme.txt
new file mode 100644
index 00000000000..b8995463fa7
--- /dev/null
+++ b/Optimal_bounding_box/benchmark/Optimal_bounding_box/readme.txt
@@ -0,0 +1,2 @@
+To draw a graph with the benchmark times set the path-to-the-measurments in draw_benchmark_times.py if necessary,
+and run the script with python 3.