Wrk2Img

You find wrk and wrk2 awesome for latency analysis but reading km of log file doesnt seems to be fun ?

Introducing wrk2img, your new tool to go to generate latency graph, as easily as possible.

Goal

wrk2img has two goal:

• Direct use in a pipeline to output beautiful latency graph
• Save multiple output then pipe to wrk2img to combine them

Installation

pip install wrk2img
Python 3.5 is required.

How to use

Direct usage :

• wrk : wrk --latency http://localhost:8000 | wrk2img output.png
• wrk2 : wrk --latency -R 300 http://localhost:8000 | wrk2img output.png
  

Generating latency data at multiple load level using wrk2 and them combining them

wrk --latency -R 300 http://localhost:8000 > 300
wrk --latency -R 500 http://localhost:8000 > 500
wrk --latency -R 700 http://localhost:8000 > 700
cat 300 500 700 | wrk2img output.png

Feature

• log scale
• transparent background
• change background color
• combine graph from wrk and wrk2 in the same output