id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
10212,Don't protect calls to SSL_accept by a static mutex,Sergei Nikishin <nordsturm@…>,chris_kohlhoff,"Since this commit:
commit ad1c1008321e9b14779816ae19dfaa261c2de293
Author: Christopher Kohlhoff <chris@kohlhoff.com>
Date:   Fri Mar 18 00:25:54 2011 +0000

    New SSL implementation.


    [SVN r70096]

calls to SSL_connect are not protected by ssl_mutex_, but calls to SSL_accept are wrapped by a lock.

I have a http/websocket server application which is extremelly slow in processing requests over a secured connection (about 700 RPS). Under peak load (3K RPS) all threads are waiting for the mutex (for example, 10 threads which are calling to io_service::run()).

For every instance of io_service I use a single ssl_context.

I'm uploading a patch I use to solve this problem. I have tested it under load for 5-6 months and I have no problems with using SSL_accept without this mutex so I propose the patch.",Patches,new,To Be Determined,asio,Boost 1.54.0,Problem,,,