Update README.md

util/README.md

@@ -24,3 +24,22 @@ $./bench.pl ./bwbench-GCC 14-24  10  1
 ## extractResults.pl to generate a plottable output files from multiple scaling runs
 
 Please see how to use it in the toplevel [README](https://github.com/RRZE-HPC/TheBandwidthBenchmark#scaling-runs).
+
+## benchmarkSystem.pl to benchmark a system and generate plots and markdown for the result wiki
+
+**Please use with care!**
+
+The script is designed to be used from the root of TheBandwidthBenchmark.
+This script cleans and builds the currently configured toolchain. It expects that all Likwid tools are in the path!
+Desired Frequency settings must be already in place.
+
+Usage:
+```
+perl ./benchmarkSystem.pl <DATA-DIR> <EXECUTABLE> <PREFIX>
+```
+
+where ```<DATA-DIR>``` is the directory where you want to store all results and generated output.
+```<EXECUTABLE>``` is the bwBench executable name, this must be in accordance to the configured tool chain in ```config.mk```. E.g. ```./bwBench-CLANG```.
+```<PREFIX>``` is the file prefix for all generated output, e.g. Intel-Haswell .
+
+