Boost logo

Boost :

Subject: Re: [boost] [block_ptr] 20% speed boost
From: Phil Bouchard (philippeb8_at_[hidden])
Date: 2016-02-16 19:18:13


On 02/16/2016 07:09 PM, Phil Bouchard wrote:
> > If I try out the latest modifications and I disable the threads then on
> > Linux I have:
> >
> > make:
> > auto_ptr: 2458626 ns
> > shared_ptr: 2685224 ns
> > block_ptr: 28300624 ns
> >
> > new:
> > auto_ptr: 2383605 ns
> > shared_ptr: 4992185 ns
> > block_ptr: 7979659 ns
>
> So I just added a specialization of the pool for GCC x86 and now
> block_ptr<> speeds up by 20%:
>
> make:
> auto_ptr: 2511658 ns
> shared_ptr: 2695469 ns
> block_ptr: 22547960 ns
>
> new:
> auto_ptr: 2369312 ns
> shared_ptr: 4991352 ns
> block_ptr: 6443925 ns

I mean there is not much difference in speed with shared_ptr<> (30%),
given that extra functionality.


Boost list run by bdawes at acm.org, gregod at cs.rpi.edu, cpdaniel at pacbell.net, john at johnmaddock.co.uk