uvloop is a fast, drop-in replacement of the built-in asyncio event loop. uvloop is implemented in Cython and uses libuv under the hood.
The project documentation can be found here.
uvloop makes asyncio 2-4x faster.
![performance.png](performance.png)
The above chart shows the performance of an echo server with different
message sizes. The sockets benchmark uses loop.sock_recv()
and
loop.sock_sendall()
methods; the streams benchmark uses asyncio
high-level streams, created by the asyncio.start_server()
function;
and the protocol benchmark uses loop.create_server()
with a simple
echo protocol. Read more about uvloop performance
here.
uvloop requires Python 3.5 and is available on PyPI. Use pip to install it:
$ pip install uvloop
To make asyncio use uvloop, you can install the uvloop event loop policy:
import asyncio
import uvloop
asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())
Alternatively, you can create an instance of the loop manually, using:
loop = uvloop.new_event_loop()
asyncio.set_event_loop(loop)
To build uvloop, you'll need Cython and Python 3.5. The best way
is to create a virtual env, so that you'll have cython
and
python
commands pointing to the correct tools.
git clone --recursive [email protected]:MagicStack/uvloop.git
cd uvloop
make
make test
MIT.