Trying to evaluate the requirements of my Web application, I wanted to put it under load and at the same time check how it scales on memory and CPU.
But running AB/HTTPerf and htop/"pidstat -C" in a way that produces a coherent log file is quite challenging. Further, those monitoring tools consume a lot of CPU resources, injecting a bias in the results.
The best match for the task I could find is an open-source wrapper for ApacheBench:
Do you know about other open-source tools that do it all in one single step?