Re: [boost] [Block Pointer] benchmark

Subject: Re: [boost] [Block Pointer] benchmark
From: Phil Bouchard (philippe_at_[hidden])
Date: 2011-05-25 16:22:49

On 5/25/2011 12:18 PM, Nevin Liber wrote:
>
> Is it copying anything more than a pointer?  Are you really asserting that
> copying a pointer is far more work than a heap allocation??  Could you post
> some assembly on any platform backing your assertion?

So we have shared_ptr being initialized with an object created by 
operator new.  shared_ptr will then allocate another reference counter. 
  2 allocations is faster than the make_shared counterpart so yes 
copying a pointer is slower than 2 heap allocations.

-Phil