Re: [Boost-users] [boost::shared_ptr] performance killer

From: Peter Dimov (pdimov_at_[hidden])
Date: 2006-10-23 11:43:48

Leon Mlakar wrote:

> As a matter of fact, I will be interesting to see how this was done.
> We tried to modify the code into this direction but run into some
> problems, and since there was a pressure to deliver (as there always
> is) we then used a backup plan and guarded the (infrequently used)
> shared heap by other means.

You can take a look at the commits

http://boost.cvs.sourceforge.net/boost/boost/boost/shared_ptr.hpp?r1=1.58&r2=1.59
http://boost.cvs.sourceforge.net/boost/boost/boost/detail/shared_count.hpp?r1=1.47&r2=1.48
http://boost.cvs.sourceforge.net/boost/boost/boost/detail/sp_counted_impl.hpp?r1=1.2&r2=1.3

where this support was added, or you could download the RC of 1.34 if there 
were an obvious place to do that. :-) People that are more resourceful than 
me have found it at:

http://engineering.meta-comm.com/boost/snapshot/boost-RC_1_34_0.tar.bz2