Adds profiling tips

profiling.md

@@ -0,0 +1,27 @@
+# Profiling on Linux
+
+Simple tips for software profiling using Linux.
+
+## Simple steps on using gprof:
+
+[gprof](http://www.cs.utah.edu/dept/old/texinfo/as/gprof.html) is a really efficient prototyping tool designed by Richard Stallman
+
+It is a total graal to exactly know where your bottlenecks are, and which parts of your software have to be optimized first!
+
+- Simply install gprof on your computer (for debian based distros).
+```bash
+$ sudo apt-get install gprof
+```
+- Compile your C code with the -pg option
+- Execute your program, just as usual
+
+You will see that a **gmon.out** file was created during the execution
+You can retrieve the results of profiling by running gprof:
+```bash
+$ gprof your_binary gmon.out >> saved_report
+```
+
+and then read the result
+```bash
+$ vim saved_report
+```