README.md

@@ -18,6 +18,13 @@
 - Windows
     - Will most likely not work
 
+### Tools
+
+- Profiling
+    - [gprof](https://ftp.gnu.org/old-gnu/Manuals/gprof-2.9.1/html_mono/gprof.html)
+    - [scalasca](https://www.scalasca.org/)
+    - [scorep](https://www.vi-hps.org/projects/score-p)
+
 ### Libraries
 
 - Python
@@ -74,6 +81,38 @@ If you have any problems running the scripts, you might have to run this instead
     python3 scripts/<script-name>
 ```
 
+## Performance
+
+This section aims to give an idea to the time it takes for the program to
+run so that you know a bit what to expect if you decide to run it for
+yourself.
+
+### CPU
+
+The times mentioned here are times achieved on a computer with these 
+specifications:
+
+- CPU model
+    - Intel i7-9850H
+- Threads
+    - 12
+- Clock speed
+    - 4.6GHz
+
+### Times
+
+All times mentioned use the **evolve_RK4** method.
+
+Running a simulation with 100 particles without particle interactions over
+40000 steps takes around 1.8 seconds. With particle interactions, it takes
+around 4.8 seconds.
+
+**potential_resonance_wide_sweep** takes around 56 seconds to complete.
+
+**potential_resonance_narrow_sweep** takes around 172 seconds to complete.
+
+**potential_resonance_narrow_sweep_interaction** takes around 936 seconds to 
+complete.
 
 ## Credits