From owner-freebsd-fs  Tue May 15 12:26:33 2001
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Date: Tue, 15 May 2001 22:26:20 +0300 (EET DST)
From: Stefan Parvu <sparvu@cc.hut.fi>
To: freebsd-fs@freebsd.org
Cc: fbsdq@yahoo.com
Subject: UFS to FAT32
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Hello,

I tested FreeBSD 4.3-RELEASE doing this :

1. mount /win98 partition as rw only. Move from BSD partition to FAT32 a
file of 500MB. Time around 25min. System really slow. CPU as idle around
99% but vmstat reported a lot of blocked processes(2to6). Can't work
anymore in the box until de copy operation finished.

2. mount /win98 as rw, sync. The same scenario movinf a file 500MB from
UFS to FAT32 . Time around 35min. System ok. You can do some other work
meanwhile copy operation. In the first scenario there were really long
delays until opening a new terminal, or top, whatever processes.

So why is happening this ? Should /win98 be mounted a sync option.
In both cases I used an 
ad0: 19470MB <IBM-DJNA-352030> [39560/16/63] at
ata0-master
UDMA33

Pentium III 550MHz 128MBRAM, 500swap.

Thanks,
Stefan


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