Re: [Boost-users] [asio] Using io_service::poll() without pthread locking and unlocking

Subject: Re: [Boost-users] [asio] Using io_service::poll() without pthread locking and unlocking
From: stefan.naewe_at_[hidden]
Date: 2015-10-29 09:46:58

Am 29.10.2015 um 11:10 schrieb ☂Josh Chia (谢任中):
> I'm using boost::asio to do some TCP socket communication from a
> single-threaded program. The program performs asynchronous reads and
> writes and keeps calling io_service::poll() from a busy loop.
> 
> I noticed from callgrind profiling that a significant portion of time
> is spent on pthread locking and unlocking from io_service::poll(). If
> I can get rid of the lock operations, the performance will improve
> significantly. Is there a way to get io_service to not use locks
> other than hacking the source code? It's a single-threaded
> application so the locking is unnecessary.
> 
> The main reason I'm using asio is for the abstraction that allows me
> to write clean, simple, code, and hope I don't have to give up
> performance for simplicity.
> 
> Josh

Did you try 

  #define BOOST_ASIO_DISABLE_THREADS

??

Stefan
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