Lwan vs Uvicorn

Overview

Lwan

Stacks1

Followers6

Votes4

GitHub Stars6.0K

Forks551

Uvicorn

Stacks167

Followers119

Votes0

Lwan vs Uvicorn: What are the differences?

Request Handling: Lwan is designed to handle a large number of concurrent connections efficiently, whereas Uvicorn focuses on providing ASGI (Asynchronous Server Gateway Interface) support for web applications.
Language Support: Lwan is written in C, while Uvicorn is written in Python, which may affect performance and resource usage depending on the specific use case and requirements.
Concurrency Model: Lwan utilizes a traditional threads-based model for concurrency, while Uvicorn leverages asynchronous programming and event loops for handling multiple connections concurrently with fewer resources.
Performance: Lwan is recognized for its high performance and low latency, suitable for high traffic websites, whereas Uvicorn is known for its ease of use and compatibility with the Python ecosystem.
Configuration: Lwan provides a simple configuration system with a focus on performance optimization, while Uvicorn offers more flexibility in configuration options and supports deployment in various environments.
Community and Support: Lwan has a smaller but dedicated community of developers focused on performance optimizations, while Uvicorn benefits from the larger Python community and ecosystem, providing more extensive support and resources for developers.

In Summary, Lwan and Uvicorn differ in terms of their request handling, language support, concurrency models, performance characteristics, configuration options, and developer community support.

Share your Stack

Help developers discover the tools you use. Get visibility for your team's tech choices and contribute to the community's knowledge.

View Docs

CLI (Node.js)

Manual

Detailed Comparison

Lwan	Uvicorn
In development for almost 3 years, Lwan was until now a personal research effort that focused mostly on building a solid infrastructure for a lightweight and speedy web server.	It is a lightning-fast ASGI server, built on uvloop and httptools. Until recently Python has lacked a minimal low-level server/application interface for asyncio frameworks. The ASGI specification fills this gap, and means we're now able to start building a common set of tooling usable across all asyncio frameworks.
Low memory footprint (~500KiB for 10k idle connections);Minimal memory allocations & copies;Minimal system calls;Hand-crafted HTTP request parser;Static file serving uses the most efficient way according to file size;No copies between kernel and userland for files larger than 16KiB;Smaller files are sent using vectored I/O;Header overhead is considered before considering deflate compression;Mostly wait-free multi-threaded design;One thread accepts connections, one I/O thread per logical CPU handles them;Hand-crafted coroutines makes asynchronous I/O a breeze in C;Linux only, as it relies on epoll();Purpose-built I/O loop;Efficient loading cache used for;Directory listing;File information (size, last modified date, MIME type, etc);Compressed files;Diminute codebase with roughly 7200 lines of C code	ASGI server implementation; Supports HTTP/1.1 and WebSockets; Support for HTTP/2 is planned
Statistics
GitHub Stars 6.0K	GitHub Stars -
GitHub Forks 551	GitHub Forks -
Stacks 1	Stacks 167
Followers 6	Followers 119
Votes 4	Votes 0
Pros & Cons
Pros 1 C and Lua Scripting 1 Free 1 High-performance http server 1 Performance	No community feedback yet
Integrations
No integrations available	Python

What are some alternatives to Lwan, Uvicorn?

NGINX

nginx [engine x] is an HTTP and reverse proxy server, as well as a mail proxy server, written by Igor Sysoev. According to Netcraft nginx served or proxied 30.46% of the top million busiest sites in Jan 2018.

Apache HTTP Server

The Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server. Originally designed as a replacement for the NCSA HTTP Server, it has grown to be the most popular web server on the Internet.

Unicorn

Unicorn is an HTTP server for Rack applications designed to only serve fast clients on low-latency, high-bandwidth connections and take advantage of features in Unix/Unix-like kernels. Slow clients should only be served by placing a reverse proxy capable of fully buffering both the the request and response in between Unicorn and slow clients.

Microsoft IIS

Internet Information Services (IIS) for Windows Server is a flexible, secure and manageable Web server for hosting anything on the Web. From media streaming to web applications, IIS's scalable and open architecture is ready to handle the most demanding tasks.

Apache Tomcat

Apache Tomcat powers numerous large-scale, mission-critical web applications across a diverse range of industries and organizations.

Passenger

Phusion Passenger is a web server and application server, designed to be fast, robust and lightweight. It takes a lot of complexity out of deploying web apps, adds powerful enterprise-grade features that are useful in production, and makes administration much easier and less complex.

Gunicorn

Gunicorn is a pre-fork worker model ported from Ruby's Unicorn project. The Gunicorn server is broadly compatible with various web frameworks, simply implemented, light on server resources, and fairly speedy.

Jetty

Jetty is used in a wide variety of projects and products, both in development and production. Jetty can be easily embedded in devices, tools, frameworks, application servers, and clusters. See the Jetty Powered page for more uses of Jetty.

lighttpd

lighttpd has a very low memory footprint compared to other webservers and takes care of cpu-load. Its advanced feature-set (FastCGI, CGI, Auth, Output-Compression, URL-Rewriting and many more) make lighttpd the perfect webserver-software for every server that suffers load problems.

Swoole

It is an open source high-performance network framework using an event-driven, asynchronous, non-blocking I/O model which makes it scalable and efficient.

Related Comparisons

Lwan vs Uvicorn: What are the differences?

Request Handling: Lwan is designed to handle a large number of concurrent connections efficiently, whereas Uvicorn focuses on providing ASGI (Asynchronous Server Gateway Interface) support for web applications.
Language Support: Lwan is written in C, while Uvicorn is written in Python, which may affect performance and resource usage depending on the specific use case and requirements.
Concurrency Model: Lwan utilizes a traditional threads-based model for concurrency, while Uvicorn leverages asynchronous programming and event loops for handling multiple connections concurrently with fewer resources.
Performance: Lwan is recognized for its high performance and low latency, suitable for high traffic websites, whereas Uvicorn is known for its ease of use and compatibility with the Python ecosystem.
Configuration: Lwan provides a simple configuration system with a focus on performance optimization, while Uvicorn offers more flexibility in configuration options and supports deployment in various environments.
Community and Support: Lwan has a smaller but dedicated community of developers focused on performance optimizations, while Uvicorn benefits from the larger Python community and ecosystem, providing more extensive support and resources for developers.

In Summary, Lwan and Uvicorn differ in terms of their request handling, language support, concurrency models, performance characteristics, configuration options, and developer community support.

Lwan vs Uvicorn

Overview