Performance Analyzer is an HTTP benchmarking tool capable of generating significant load from a single node or from a distributed cluster. It combines the capabilities of elixir to analyze the behavior of an application in different concurrency scenarios.
mix deps.get
mix compileOpen and edit config/dev.exs file to configure.
use Mix.Config
config :perf_analyzer,
url: "http://127.0.0.1:8080/wait/1",
request: %{method: "POST", headers: [{"Content-Type", "application/json"}], body: "{\"key\": \"example\"}"},
execution: %{steps: 5, increment: 50, duration: 7000, constant_load: false},
distributed: :none
config :logger,
level: :warn
| Property | Description |
|---|---|
| url | The url of the application you want to test. Make sure you have a network connection between two machines |
| request | Here you need to configure the HTTP verb, headers and the body of the request. |
| steps | The number of executions for the test. Each step adds the concurrency configured in the increment |
| increment | Increment in concurrency after each step |
| duration | Duration in milliseconds of each step |
| constant_load | Allows you to configure if the load will be constant or if the increment will be used to vary the concurrency in each step |
| distributed | Indicates if it should be run from a single node or in a distributed way |
In the example above will be executed a test of 5 steps with an increment of 50:
- Step 1: 50 of concurrency
- Step 2: 100 of concurrency
- Step 3: 150 of concurrency
- ...
Each step will last 7 seconds.
In the shell:
iex -S mix
or
iex --sname node1@localhost -S mix
To run Execution:
Perf.Execution.launch_execution()
After each step is executed you will get a table of results like the following:
concurrency, throughput -- mean latency -- p90 latency, max latency, mean http latency, http_errors, protocol_error_count, error_conn_count
50, 22159 -- 2ms -- 3ms, 12ms, 2ms, 0, 0, 0
100, 29329 -- 3ms -- 4ms, 19ms, 3ms, 0, 0, 0
150, 31000 -- 5ms -- 6ms, 211ms, 5ms, 0, 0, 0
200, 31031 -- 6ms -- 7ms, 33ms, 6ms, 0, 0, 0
250, 31413 -- 8ms -- 9ms, 42ms, 8ms, 0, 0, 0
......
Then, you can compare the attributes that are interesting for you. For example concurrency vs Throughtout or concurrency vs mean latency.
