On 5/24/2011 5:33 PM, Darren Garvey wrote:
On 25 May 2011 00:52, Phil Bouchard<philippe@fornux.com> wrote:
I just tested it using make_shared& make_block and I get: make: auto_ptr: 11109841 ns shared_ptr: 21215277 ns block_ptr: 143637475 ns
new: auto_ptr 4583447 ns shared_ptr: 10675000 ns block_ptr: 67152785 ns
I wonder if it's that your test case prevents your compiler from performing RVO, or that the docs might be incorrect. I wonder what the results look like if you instead test:
```
template<typename T, T (*P)()> void worker_make() { for (int i = 0; i< 100000; ++ i) T p = P(); }
I get a slight improvement: make: auto_ptr: 12849529 ns shared_ptr: 18574307 ns block_ptr: 126387234 ns -Phil