[webkit-dev] [Block Pointer] Deterministic Region Based Memory Manager

Phil Bouchard philippeb8 at gmail.com
Fri Mar 11 18:56:45 PST 2016

On 03/06/2016 10:57 PM, Phil Bouchard wrote:
> True but if block_ptr<> is 10x faster than the Mark & Sweep GC then I
> think we got something perhaps worth investigating.

- For the record, now block_ptr<> is 600% times faster than shared_ptr<> 
so it's a good start:

auto_ptr:                   23174753 ns
shared_ptr:                 49726615 ns
block_ptr:                   7812659 ns

- I made the proxy explicit.  Now it can be used 3 different ways:

1) Clothesline style:

block_proxy x;
block_ptr<int> v = block_ptr<int>(x, new block<int>(11));
block_ptr<int> w = block_ptr<int>(x, new block<int>(12));

2) Root style:

proxy_ptr<char[9]> u = proxy_ptr<char[9]>(new block<char[9]>());

3) Container style (very easy to write containers now):

struct list : block_proxy {
     list() : root(*this) {}
     block_ptr<node> root;

- I removed the capacity to unify sets.  Why?  Because it's faster & 
cleaner without it.  But I can add it back.

- Once again all the examples can be found here:

- And the pointer itself here:


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