From owner-freebsd-stable Tue Apr 30 9:53:42 2002 Delivered-To: freebsd-stable@freebsd.org Received: from tesla.foo.is (tesla.reverse-bias.org [217.151.166.96]) by hub.freebsd.org (Postfix) with ESMTP id 9B33837B405 for ; Tue, 30 Apr 2002 09:53:35 -0700 (PDT) Received: from there (eniac.foo.is [192.168.1.25]) by tesla.foo.is (Postfix) with SMTP id E80282784; Tue, 30 Apr 2002 16:53:28 +0000 (GMT) Content-Type: text/plain; charset="iso-8859-1" From: Baldur Gislason To: Eugene Grosbein Subject: Re: msdosfs serious performance problem with recent 4.5-STABLE Date: Tue, 30 Apr 2002 16:52:20 +0000 X-Mailer: KMail [version 1.3.2] References: <20020501001235.A792@grosbein.pp.ru> In-Reply-To: <20020501001235.A792@grosbein.pp.ru> Cc: stable@freebsd.org MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-Id: <20020430165329.E80282784@tesla.foo.is> Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Well, first of all FAT is a VERY slow filesystem, it's fastest when it's clean, but gets fragmented very quickly. Still you should be able to get a bit higher speed. I'm not sure there are msdosfs defragmenting utilities for UNIX. Baldur On Tuesday 30 April 2002 16:12, you wrote: > Hi! > > What's a reason of very slow writing to msdosfs (FAT32)? > I get no more than 350Kb/s with recent 4.5-STABLE. > Writing process spend much time in 'wdrain' state. > 5.0-DP1 gives me 2Mb/s and more on the same machine. > > If I try to copy from one msdosfs to another msdosfs > (both reside on the same drive) I get less than 160Kb/s. > > Eugene Grosbein > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-stable" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message