How can test the performance of graphhopper

i want to use the graphhopper in my server.
I want to test the performance of graphhopper by assessing the memory usage and the cpu usage.
can any one help me how can i monitor the system when i use the graphhopper and what is the system behavior when the user send request to it?
Best Regards

This is the wrong forum for monitoring server performance. To monitor speed of graphhopper you can try “./ measurement your.pbf”

thanks for your reply, which forum i must ask this question?
when i write this :
./ measurement shpeFile.shp

it’s throw the exception :
Exception in thread “main” java.lang.IllegalStateException: Couldn’t load from existing folder: /home/parsijoo/IdeaProjects/parsijoo-map/parsijoo-routing/data/shpTest/routing-gh but also cannot use file for DataReader as it wasn’t specified!
at com.graphhopper.GraphHopper.importData(
at com.graphhopper.GraphHopper.process(
at com.graphhopper.GraphHopper.importOrLoad(
is the format of routing information important?

Best Regards