Re: What is PageSlab?

[Peter Teoh <htmldeveloper@xxxxxxxxx>]

On Fri, Jul 13, 2012 at 8:35 PM, Sarbojit Ganguly <unixman.linuxboy@xxxxxxxxx> wrote:

Hello Community,

I was browsing the tree and in slub.c/ function kfree(), I found "PageSlab"
I could not find its definition anywhere.

Also, googling about it did not yield much help except for pointers to
various patches _using_ this.

Can anyone explain what it is and where it is defined (if at all it
has a definition).

I am not sure what is your motive behind asking this question - PageSlab can mean many different thing, but one thing in common is the concept of SLAB allocator:

http://en.wikipedia.org/wiki/Slab_allocation

http://www.ibm.com/developerworks/linux/library/l-linux-slab-allocator/

And the first original paper from Bonwick:

http://www.ezdoum.com/upload/20/20020412235505/bonwick94slab.pdf

And here is a SLAB implementation by itself (for easier reading and reuse):

http://code.google.com/p/memslab/

And this page is for detailed description on SLAB:

http://www.kernel.org/doc/gorman/html/understand/understand011.html

http://lwn.net/Articles/320556/  (several variation of SLAB described, including the SLUB u mentioned above).

which is used in several OS (Unix mainly).

and this blog teaches u how to analyze SLAB usage patterns:

http://flylib.com/books/en/4.454.1.55/1/

http://3.bp.blogspot.com/_Z4Xjc19r9Dw/TSM3q2guB0I/AAAAAAAAAUo/1a_eQQGeXOo/s1600/Linux%2BMM.jpg

etc...

 

--
Regards,
Sarbojit

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-- 
Regards,
Peter Teoh
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