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

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Message-Id: <0ML2xA-1KeGsB0BuB-00032S@mrelayeu.kundenserver.de>
Date:	Sat, 13 Sep 2008 00:11:09 +0200
From:	Harun Scheutzow <harun04@...eutzow.de>
To:	linux-kernel@...r.kernel.org
Subject: Re: vfat file system extreme fragmentation on multiprocessor

For the records:

Both Windows Vista and XP SP3 produce very little or no fragmentation on same FAT partition and same workload (2 tasks writing in 50 MByte pieces, up to some hundred MByte file size). But XP SP3 has a stupid behavior, too, allocating new space always behind previous allocations, even if old files have already been really deleted (not in trash), at least for one session (not tried what happens after reboot). This can result in multi-GByte holes of free space.

Harun Scheutzow

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