linux-kernel - Re: [PATCH 3/6] compcache: TLSF Allocator interface

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Message-Id: <1206377777.6437.123.camel@lappy>
Date:	Mon, 24 Mar 2008 17:56:17 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	nitingupta910@...il.com
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH 3/6] compcache: TLSF Allocator interface

On Mon, 2008-03-24 at 20:34 +0530, Nitin Gupta wrote:
> Two Level Segregate Fit (TLSF) Allocator is used to allocate memory for
> variable size compressed pages. Its fast and gives low fragmentation.
> Following links give details on this allocator:
>  - http://rtportal.upv.es/rtmalloc/files/tlsf_paper_spe_2007.pdf
>  - http://code.google.com/p/compcache/wiki/TLSFAllocator
> 
> This kernel port of TLSF (v2.3.2) introduces several changes but underlying
> algorithm remains the same.
> 
> Changelog TLSF v2.3.2 vs this kernel port
>  - Pool now dynamically expands/shrinks.
>    It is collection of contiguous memory regions.
>  - Changes to pool create interface as a result of above change.
>  - Collect and export stats (/proc/tlsfinfo)
>  - Cleanups: kernel coding style, added comments, macros -> static inline, etc.

Can you explain why you need this allocator, why don't the current
kernel allocators work for you?




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