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From: "Sven Köhler" <skoehler@upb.de>
To: linux-kernel@vger.kernel.org
Subject: Re: [blockdevices/NBD] huge read/write-operations are splitted by the kernel
Date: Mon, 08 Sep 2003 14:42:07 +0200	[thread overview]
Message-ID: <bjhtmm$crf$1@sea.gmane.org> (raw)
In-Reply-To: <20030908085802.GH840@suse.de>

> You'll probably find that if you bump the max_sectors count if your
> drive to 256 from 255 (that is the default if you haven't set it), then
> you'll see 128kb chunks all the time.

Why is 255 the default. It seems to be an inefficient value. Perhaps the 
NBD itself should set it to 256.

> See max_sectors[] array.

Well, i found the declaration, but i can't imagine how to set the values 
in it.



  reply	other threads:[~2003-09-08 12:50 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-09-08  0:02 [blockdevices/NBD] huge read/write-operations are splitted by the kernel Sven Köhler
2003-09-08  8:58 ` Jens Axboe
2003-09-08 12:42   ` Sven Köhler [this message]
2003-09-08 14:33     ` Jens Axboe
2003-09-08 13:26   ` Sven Köhler
2003-09-08 14:34     ` Jens Axboe

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