[ros-dev] Re: [ros-svn] [hbirr] 17306: - Removed the hole pool allocation, because it needs to much memory and ros will not boot.

[Royce Mitchell III]

Hartmut Birr wrote:

>Royce Mitchell III wrote:
>
>  
>
>>hbirr at svn.reactos.com wrote:
>>
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>>>- Removed the hole pool allocation, because it needs to much memory
>>>and ros will not boot.  - Allocate short blocks in one page.  - Split
>>>the used and free header. It makes it easier to implement a red zone
>>>check.
>>>
>>> 
>>>
>>>      
>>>
>>Can we use rpoolmgr.h for npool? I wrote it to be useable by both.
>>
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>The non paged pool uses an avl tree for free blocks. That is very fast.
>Currently, I'm thinking about the red zone check and about moving the
>block headers into separate blocks. Currently we need to access 20..50
>free headers to find one block. A cpu has between 8 and 40 tlb entries
>for data. If we move the headers into some single pages (or one large
>page), we prevent from tlb thrashing. Currently, Rpoolmgr.h doesn't
>implement the allocation of short blocks in a single page. This will
>break the using of the queues.
>  
>
What about abstracting the npool code so that it can be used for ppool 
also? That way improvements to one would benefit both?