Yaws (Yet another web server) is a

web server A web server is computer software and underlying hardware that accepts requests via HTTP (the network protocol created to distribute web content) or its secure variant HTTPS. A user agent, commonly a web browser or web crawler, initi ...

written in Erlang by Claes (klacke) Wikström. Yaws can be embedded into other Erlang-based applications or run as a regular standalone web server.Steve Vinoski article at the IEEE Internet Computing review, July/August 2011
/ref> Because Yaws uses Erlang's lightweight threading system, it performs well under high concurrency. A load test conducted in 2002 comparing Yaws and Apache found that with the hardware tested, Apache 2.0.39 with the worker MPM failed at 4,000 concurrent connections, while Yaws continued functioning with over 80,000 concurrent connections. The load test concludes,

"The problem with Apache is not related to the Apache code per se but is due to the manner in which the underlying operating system (Linux) implements concurrency. We believe that any system implemented using operating system threads and processes would exhibit similar performance. Erlang does not make use of the underlying OS's threads and processes for managing its own process pool and thus does not suffer from these limitations".

and in the underlined part above (formatting added), expresses the opinion that the founding technologies make the difference in scalability.

References

External links

* *Interview with YAWS developer Claes Klacke Wikstrom
OGG
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MP3

ErlyWeb
– MVC-pattern web framework for Yaws
Erlang Web
– MVC-pattern web framework Yaws and Inets Erlang/OTP application
Nitrogen
– An event-driven Web 2.0 framework for Erlang that runs on Yaws, Mochiweb, and Inets Free web server software Erlang (programming language) Web server software for Linux {{web-software-stub

See also

References

External links