[webkit-dev] Memory Manager

[Phil Bouchard]

On 12/22/2014 02:04 AM, Myles C. Maxfield wrote:
> “Manager” is a vague term. Do you mean a replacement for malloc() / free()?

- It handles cyclic pointers so it's really a memory manager.
- It's deterministic because you can predict when all memory blocks will 
get deallocated
- All memory allocations are guaranteed to be free when the application 
terminates

> Is there any documentation or explanation of your implementation?

Yes, in the aforementioned link:
https://svn.boost.org/svn/boost/sandbox/block_ptr/libs/smart_ptr/doc/index.html

> Why are you confident that WebKit would see speed improvements using this library?

I am currently working for a company that uses Webkit and most of the 
time the browser hangs because of the current garbage collector.

> What about your memory manager indicates that WebKit would be a good choice of user of it?

Why would Webkit be a good choice?  Because it can improve the overall 
performance of the Javascript handler.

> Are there any other libraries that use it? Which version(s) of Boost is/will this be included in?

It is still pending for review:
http://www.boost.org/community/review_schedule.html

But it's already been unit tested so it is operative:
https://svn.boost.org/svn/boost/sandbox/block_ptr/libs/smart_ptr/example/

The only thing left to be done is to use a faster pool than the current 
Boost one.

Keep in mind that every time a Javascript page terminates, all memory 
allocations are guaranteed to be freed instantly.  So if the memory is 
somehow exhausted; you just have to reload the page.


Regards,
-Phil

> Thanks,
> Myles
>> On Dec 21, 2014, at 8:53 PM, Phil Bouchard <pbouchard8 at gmail.com> wrote:
>>
>> Greetings,
>>
>> I wrote a deterministic memory manager in C++ and I was wondering if their is any interests introducing it into Webkit, thus speeding up Webkit.
>>
>> The memory manager is located here:
>> https://svn.boost.org/svn/boost/sandbox/block_ptr/
>>
>>
>> Sincerely yours,
>> -Phil
>>
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