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From: Giuliano Pochini <pochini@denise.shiny.it>
To: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Problems even with 512 block size MOs
Date: Sat, 05 May 2001 13:20:45 +0200	[thread overview]
Message-ID: <3AF3E20D.94B62929@denise.shiny.it> (raw)
In-Reply-To: <15088.18199.487902.514295@hertz.ikp.physik.tu-darmstadt.de>


> recent 2.4 kernels have incredible bad performance for me when handling MO
> drives. Going back 2.2 shows better performance.

> Copying a 6.5 MByte file with cp returns nearly immediately on the
> commandline, but umount nearly takes forever. Maximum rate detected by
> xosview during umount was about 30 kByte.

I have this one:

  Vendor: FUJITSU   Model: MCD3130SS         Rev: 0020

and it works very well with 2.4. 2.2 kernel perform really badly because of
the famous merging problem.

> Are all my MO disks rotten? Are the MO drives broken? Are my SCSI adapters
> broken? Or is there a bug in the SCSI layer?

No probs here. I have an Adaptec SCSI card.

Bye.



      parent reply	other threads:[~2001-05-06 12:39 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-05-02 17:42 Problems even with 512 block size MOs Uwe Bonnes
2001-05-02 17:53 ` Alan Cox
2001-05-05 11:20 ` Giuliano Pochini [this message]

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