linux-kernel - Re: vfat file system extreme fragmentation on multiprocessor

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Message-ID: <48C99110.8070206@zytor.com>
Date:	Thu, 11 Sep 2008 14:43:44 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Lennart Sorensen <lsorense@...lub.uwaterloo.ca>
CC:	Harun Scheutzow <harun04@...eutzow.de>,
	linux-kernel@...r.kernel.org
Subject: Re: vfat file system extreme fragmentation on multiprocessor

Lennart Sorensen wrote:
>>>
>> Well, you can always do that in-memory.
> 
> It still involves searching no matter where you do it.  With FAT-16 that
> means up to 2^16 clusters to search through.  With FAT-32 even more.  It
> doesn't have a cluster bitmap to speed things up.
> 

You don't, obviously, and the cluster links are fairly big.  Lipstick on 
a pig, and all that.  But it's prettier with the lipstick.

	-hpa
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