This is a simple benchmark for python async frameworks. Almost all of the frameworks are ASGI-compatible (aiohttp and tornado are exceptions on the moment).

The objective of the benchmark is not testing deployment (like uvicorn vs hypercorn and etc) or database (ORM, drivers) but instead test the frameworks itself. The benchmark checks request parsing (body, headers, formdata, queries), routing, responses.

Read more about the benchmark: The Methodic

Table of contents

Accept a request and return HTML response with a custom dynamic header

The test simulates just a single HTML response.

Sorted by max req/s

Framework Requests/sec Latency 50% (ms) Latency 75% (ms) Latency Avg (ms)
blacksheep 1.0.9 19432 2.70 4.27 3.26
muffin 0.84.1 17250 3.08 4.78 3.67
falcon 3.0.1 16127 3.24 5.15 3.93
starlette 0.16.0 14000 3.61 6.00 4.54
emmett 2.2.3 13977 3.63 6.04 4.54
fastapi 0.67.0 9929 5.06 8.49 6.41
sanic 21.6.0 9308 5.41 8.96 6.89
aiohttp 3.7.4.post0 7815 8.14 8.23 8.19
quart 0.15.1 3522 18.70 19.41 18.15
tornado 6.1 3422 18.68 18.80 18.71
django 3.2.5 1977 32.21 35.93 32.38

Parse path params, query string, JSON body and return a json response

The test simulates a simple JSON REST API endpoint.

Sorted by max req/s

Framework Requests/sec Latency 50% (ms) Latency 75% (ms) Latency Avg (ms)
blacksheep 1.0.9 10836 4.67 7.84 5.87
muffin 0.84.1 10574 4.66 8.10 6.02
falcon 3.0.1 10470 4.76 8.11 6.08
starlette 0.16.0 8298 5.92 10.28 7.68
sanic 21.6.0 7850 6.23 10.67 8.16
emmett 2.2.3 7383 6.53 11.44 8.76
fastapi 0.67.0 6441 7.59 13.31 9.90
aiohttp 3.7.4.post0 4884 13.11 13.26 13.10
tornado 6.1 2919 21.96 22.07 21.93
quart 0.15.1 2208 28.58 29.09 28.97
django 3.2.5 1656 39.50 42.58 38.60

Parse uploaded file, store it on disk and return a text response

The test simulates multipart formdata processing and work with files.

Sorted by max req/s

Framework Requests/sec Latency 50% (ms) Latency 75% (ms) Latency Avg (ms)
blacksheep 1.0.9 6118 8.03 14.20 10.45
muffin 0.84.1 4634 10.75 18.89 13.78
sanic 21.6.0 4434 11.05 19.37 14.44
falcon 3.0.1 3780 13.30 22.46 17.01
starlette 0.16.0 2593 19.15 33.15 24.64
aiohttp 3.7.4.post0 2438 26.23 26.37 26.25
fastapi 0.67.0 2275 22.18 37.71 28.09
tornado 6.1 2251 28.38 28.49 28.43
quart 0.15.1 1864 34.31 35.01 34.31
emmett 2.2.3 1603 36.49 45.73 39.90
django 3.2.5 1047 60.93 67.76 61.00

Composite stats

Combined benchmarks results

Sorted by completed requests

Framework Requests completed Avg Latency 50% (ms) Avg Latency 75% (ms) Avg Latency (ms)
blacksheep 1.0.9 545790 5.13 8.77 6.53
muffin 0.84.1 486870 6.16 10.59 7.82
falcon 3.0.1 455655 7.1 11.91 9.01
starlette 0.16.0 373365 9.56 16.48 12.29
emmett 2.2.3 344445 15.55 21.07 17.73
sanic 21.6.0 323880 7.56 13.0 9.83
fastapi 0.67.0 279675 11.61 19.84 14.8
aiohttp 3.7.4.post0 227055 15.83 15.95 15.85
tornado 6.1 128880 23.01 23.12 23.02
quart 0.15.1 113910 27.2 27.84 27.14
django 3.2.5 70200 44.21 48.76 43.99