[Boost-users] pool allocator performance with multiple threads

From: Michael Dickey (mike_at_[hidden])
Date: 2008-03-20 20:32:33

Does anyone know if the fast_pool_allocator is supposed to work in a  
multithreaded environment?  I know that it is "thread-safe," but I'm  
getting some really discouraging test results from it.  Namely, using  
fast_pool_allocator is consistently performing about 10 times SLOWER  
for me than new/delete whenever multiple threads are involved.  I've  
tested and come up with the same results on three different platforms:  
Mac, Linux and Windows (MSVC).  I get the impression that I just need  
to roll my own allocator if I'm using more than one thread, but I'm  
hoping that this is not the case.  If it helps, I can put together and  
post some source code that demonstrates these results.

Thanks,
-Mike