Re: [boost] very poor thread performance

From: James Sutherland (James.Sutherland_at_[hidden])
Date: 2008-05-14 17:23:24

>
> The result has been noticed before. In fact I wrote about it in  
> several
> posts on c.l.c++.m, and in N2486 in the first few pages it uses this
> effect to illustrate a point about allocators.
> Nevertheless, the result is still surprising!!
> What is worse is that different compilers and libraries will give you
> way different results for this test, so it is not just a function of
> Intel. ( I have not tried to reproduce the results on anything but
> intel).
>

Changing from using a std::vector<int> with a single space allocation  
(not push_back) to a int[] improved the speed but not scalability...

James