ikruglov / slapper

Simple load testing tool with real-time updated histogram of request timings

slapper

Simple load testing tool with real-time updated histogram of request timings

Interface

Usage

$ ./slapper -help
Usage of ./slapper:
  -H value
    	HTTP header 'key: value' set on all requests. Repeat for more than one header.
  -base64body
    	Bodies in targets file are base64-encoded
  -maxY duration
    	max on Y axe (default 100ms)
  -minY duration
    	min on Y axe (default 0ms)
  -rate uint
    	Requests per second (default 50)
  -targets string
    	Targets file
  -timeout duration
    	Requests timeout (default 30s)
  -workers uint
    	Number of workers (default 8)

Key bindings

• q, ctrl-c - quit
• r - reset stats
• k - increase rate by 100 RPS
• j - decrease rate by 100 RPS

Targets syntax

The targets file is line-based. Its syntax is:

HTTP_METHOD url
$ body

The body line is optional. The rules for what is considered to be a body line are:

1. If something starts with $ (dollar-sign and space), it's a body
2. If the line is literally {}, it's an empty body

A missing body line is taken to mean an empty request body. Point (2) is there for backwards-compatibility.

Acknowledgement

• Idea and initial implementation is by @sparky
• This module was originally developed for Booking.com.

slapper's Issues

support of vegeta's -targets syntax

see for details https://github.com/tsenart/vegeta#-targets

coordinated omission

if this projects ever gets bigger it needs to take into account "coordinated omission" problem.
http://highscalability.com/blog/2015/10/5/your-load-generator-is-probably-lying-to-you-take-the-red-pi.html

How to install this?

Any instruction about building this app?
My goal is the create a docker image out of it :)

Cheers!

histogram legend looks odd with `-minY` and `-maxY`

The legend on the histogram doesn't appear to be correctly calculated if I run with -minY=50ms -maxy=200ms. With height=46 I still have entries on the screen from starting from 1ms.

Response code breakdown metrics

One of the things I want is to have a response code breakdown for the requests I am making.

Something like:

2xx responses: y
5xx responses: y