어릴 적 할머니가 들려주신 옛 wsgi

•

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This document discusses various techniques for improving performance of Python web applications, including WSGI, processes, threads, gevent, and asyncio. It explains that WSGI is a standard for Python web servers to interface with frameworks, and that uWSGI and Gunicorn are common WSGI servers. It also discusses how to optimize processes and threads in uWSGI, and how gevent can be used to improve I/O performance by using greenlets instead of native threads. There is no single best approach and performance tuning requires testing different configurations.

Technology

https://github.com/kyunooh/owls-requests

TIME_WAIT
http://tech.kakao.com/2016/04/21/closewait-timewait/

The Web Server Gateway Interface (WSGI) is
developed for calling convention for web servers to
forward requests to web
applications or frameworks written in the Python
programming language. The current version of
WSGI, version 1.0.1, is speciﬁed in Python
Enhancement Proposal (PEP) 3333.[1]

CGI mod_python ,
Custom API .
?!
WSGI …… ( )

There is no magic rule for setting the number of
processes or threads to use. It is very much
application and system dependent. Simple math like
processes = 2 * cpucores will not be enough. You
need to experiment with various setups and be
prepared to constantly monitor your apps. uwsgitop
could be a great tool to ﬁnd the best values.

. 
http://leekchan.com/gevent-tutorial-ko/

uwsgi
--processes 5
--gevent 1000
--gevent-monkey-patch

uwsgi --processes 5
--gevent 1000
--gevent-early-monkey-patch

–Rob Pike
“Concurrency is not parallelism”

!!
2016 파이콘 서주은님 발표 자료 참고: https://archive.pycon.kr/2016apac/program/20

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어릴 적 할머니가 들려주신 옛 wsgi

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35. The Web Server Gateway Interface (WSGI) is developed for calling convention for web servers to forward requests to web applications or frameworks written in the Python programming language. The current version of WSGI, version 1.0.1, is speciﬁed in Python Enhancement Proposal (PEP) 3333.[1]

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