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History

Andy Green c36a1e8ed0 clean: internally use LWS_WITH_CLIENT and _SERVER Remove some more things in LWS_WITH_SERVER=0 case		2019-08-26 09:58:57 +01:00
..
mount-origin	minimal examples: update for CSP best practices	2018-11-21 17:03:29 +08:00
CMakeLists.txt	clean: internally use LWS_WITH_CLIENT and _SERVER	2019-08-26 09:58:57 +01:00
localhost-100y.cert	travis: h2spec integration	2018-04-26 15:27:02 +08:00
localhost-100y.key	travis: h2spec integration	2018-04-26 15:27:02 +08:00
minimal-http-server-smp.c	openssl: add threading apis needed for 1.0.2 and earlier	2019-08-02 09:47:23 +01:00
README.md	docs: adjust lost image links	2018-09-19 10:22:21 +08:00

README.md

lws minimal http server with multithreaded service

Lws supports multithreaded service... build lws with -DLWS_MAP_SMP=<max number of threads>, the default is 1. If nonzero, some extra pthreads locking is built into lws and it supports multiple independent service threads.

When an incoming connection is accepted, it is bound to the pt with the lowest current wsi count, to keep the load on the threads balanced. Only the pt the wsi is bound to can service the thread, so although there can be as many wsi being serviced simultaneously as there are service threads, a wsi can only be service by the pt it is bound to.

The effectiveness of the scalability depends on the load. Here is an example of roughly what can be expected

build

 $ cmake . && make

usage

 $ ./lws-minimal-http-server-smp
[2018/03/07 17:44:20:2409] USER: LWS minimal http server SMP | visit http://localhost:7681
[2018/03/07 17:44:20:2410] NOTICE: Creating Vhost 'default' port 7681, 1 protocols, IPv6 on
[2018/03/07 17:44:20:2411] NOTICE:   Service threads: 10

Visit http://localhost:7681 and use ab or other testing tools