Re: [boost] [context review] Performance questions

Subject: Re: [boost] [context review] Performance questions
From: Oliver Kowalke (oliver.kowalke_at_[hidden])
Date: 2012-01-09 14:28:15

Am 09.01.2012 19:54, schrieb Antony Polukhin:
> 2) Can we use contexts like condition variables? Can we make something
> like this:
>
> struct task{
>     // Implementanion
> };
>
> std::deque<task>  g_tasks;
> continuation g_cont;
> boost::thread::mutex g_mutex;
>
<snip>

boost.context isn't related to threads.
It doesn't deal with context switches related to threads (the kernel 
doesn't see switches done by boost.context).
from docu: 'A context switch between threads requires system calls 
(involving the OS kernel), ... By contrast, transferring control among 
boost.context requires only a few hundred CPU cycles because it does not 
involve system calls as it is done within a single thread.'

Oliver