FastAPI vs Gin vs Fiber

An experiment to compare performance of FastAPI, Gin and Fiber.

Overview:

• Setup
• Run experiments
• Results

Setup

FastAPI

The repository uses Python 3.11. Follow the steps below to get started:

• Create conda environment:

  conda create -n fastapi-tests python=3.11 -y
  conda activate fastapi-tests

  You can choose any other environment manager of your choice.

• Install dependencies:

  pip install -r requirements.txt

  Note: All requirement files are generated using pip-tools.

Gin

The repository uses Go 1.21. Follow the steps below to get started:

• Install dependencies:

  go mod tidy

Run experiments

Both FastAPI and Gin applications serve one endpoint:

• /: sleeps for 10 seconds and returns a response

FastAPI

The experiment uses gunicorn server to run the FastAPI application.

gunicorn -k uvicorn.workers.UvicornWorker app:app

Gin

The experiment uses gin server to run the Gin application.

go run gin/app.go

Fiber

The experiment uses fiber server to run the Fiber application.

go run fiber/app.go

wrk Benchmarking

Run the benchmarking script:

./benchmark.sh

Note: The script uses wrk to run benchmarks on http://localhost:8000.
You should benchmark one application at a time.

Results

FastAPI

Running 1m test @ http://localhost:8000/
  4 threads and 100 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency    10.01s     5.65ms  10.02s    83.40%
    Req/Sec    23.08     52.04   180.00     87.50%
  500 requests in 1.00m, 71.29KB read
Requests/sec:      8.33
Transfer/sec:      1.19KB

Gin

Running 1m test @ http://localhost:8000/
  4 threads and 100 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency    10.01s     4.34ms  10.02s    57.20%
    Req/Sec     9.87     21.25    70.00     86.96%
  500 requests in 1.00m, 70.31KB read
Requests/sec:      8.33
Transfer/sec:      1.17KB

Fiber

Running 1m test @ http://localhost:8000/
  4 threads and 100 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency    10.00s     3.22ms  10.01s    80.00%
    Req/Sec     2.00      0.00     2.00    100.00%
  500 requests in 1.00m, 62.99KB read
Requests/sec:      8.33
Transfer/sec:      1.05KB