Re: [boost] [Block Pointer] benchmark

Subject: Re: [boost] [Block Pointer] benchmark
From: Phil Bouchard (philippe_at_[hidden])
Date: 2011-05-26 20:22:01

On 5/26/2011 4:44 PM, Frank Mori Hess wrote:
>
> Note, I moved the declaration of the shared_ptrs inside the loops.  Also,
> your benchmark on my machine shows a strong dependence on the order the
> tests are run.  The first run is slower, which is why the "new" result is
> before the "make" result above, to demonstrate the effect.

You're right but make remains the same:
1)
new:
shared_ptr:                 21234066 ns
make:
shared_ptr:                 18122766 ns

2)
make:
shared_ptr:                 18271141 ns
new:
shared_ptr:                 13395539 ns

But after analyzing the assembler dump of worker_make with block_ptr 
it's obvious RVO is a lie.

-Phil