new benchmark graph

tests/README.md

@@ -111,5 +111,22 @@ for (int i=0; i<50000; i++){
 
 In the chart above we can see that the 2.5.1 version with 8 threads has a better performance than the 2.5.1 version with 1 threads, and we can see it as much as the load increases.
 
-This particular advantage will be more noticeable with nfproxy module that is not implemented yet.
+Command: `./comparemark.py nfproxy -p testpassword -d 1 -s 50 -V 100`
+
+The code used to test matches the following regex with the python re module:
+```
+(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])
+```
+
+![nfproxy benchmarks](results/whisker_nfproxy.png)
+
+![nfproxy benchmarks](results/istogramma_nfproxy.png)
+
+# Comparing nfproxy with nfregex
+
+Nfproxy has obviously a worse performance than nfregex, but it is more flexible and can be used in more complex scenarios.
+
+![nfproxy benchmarks](results/whisker_compare.png)
+
+![nfproxy benchmarks](results/istrogramma_compare.png)