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Date:      Mon, 5 Feb 1996 10:50:32 +0100 (MET)
From:      J Wunsch <j@uriah.heep.sax.de>
To:        freebsd-hackers@freebsd.org (FreeBSD hackers)
Subject:   Re: FAT filesystem performance
Message-ID:  <199602050950.KAA04667@uriah.heep.sax.de>
In-Reply-To: <199602050730.IAA20098@labinfo.iet.unipi.it> from "Luigi Rizzo" at Feb 5, 96 08:30:26 am

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As Luigi Rizzo wrote:
> 
> > That is also true for any regular file.
> 
> I was talking about regular files.

Sorry, it was too late in the night / too early in the morning...

I meant that there's no big difference between read/write and mmap,
except that you need one extra copy operation for read/write.  The
caching should be about the same.

> A high performance FAT filesystem is certainly useful, but it might
> require a lot of work.

Yes, but we hardly need it.  (Both, stability and performance
improvement.)  If the caching situation can cause errors, perhaps
write an dosfsck(8) as well.

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)



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