[boost] Re: Re: ptr<> renamed to placed_ptr<>

From: Philippe A. Bouchard (philippeb_at_[hidden])
Date: 2002-08-30 02:11:49

Larry Evans wrote:

> Philippe A. Bouchard wrote:
> 
> The sort test may not be changing the refcounts that much. This may be
> because
> all the values are the same. Try using random numbers or just reverse
> the order.

0 will never be lower than 0 and less<> is the default operator.  It should 
simulate a reverse order.

> Of course, after the 1st sort, it wouldn't matter anymore. However, I
> did this
> and I got much different numbers. Please see:
> http://groups.yahoo.com/group/boost/files/ptr_evans/benchmark.out

Reconstruction is less important but still is making the biggest difference 
(doubled).  The other sectors are similar between shared_ptr & placed_ptr:
http://groups.yahoo.com/group/boost/files/ptr/benchmark.3.txt

Copying becomes a burden for shared_ptr on threaded (default) environments. 
 Swaps are null for placed_ptr:
http://groups.yahoo.com/group/boost/files/ptr/benchmark.4.txt

-- 
Philippe A. Bouchard