Re: Problem with Asus P4C800-DX and P4 -Northwood-

[Erik Mouw <erik@harddisk-recovery.com>]

On Mon, Jul 25, 2005 at 09:51:49PM +0200, Andreas Baer wrote:
> 
> Willy Tarreau wrote:
> >On Mon, Jul 25, 2005 at 03:10:08PM +0200, Andreas Baer wrote:
> >>Here I have
> >>
> >>        /dev/hda:  26.91 MB/sec
> >>        /dev/hda1: 26.90 MB/sec    (Windows FAT32)
> >>        /dev/hda7: 17.89 MB/sec    (Linux EXT3)
> >>
> >>Could you give me a reason how this is possible?
> >
> >
> >a reason for what ? the fact that the notebook performs faster than the
> >desktop while slower on I/O ?
> 
> No, a reason why the partition with Linux (ReiserFS or Ext3) is always 
> slower
> than the Windows partition?

Easy: Drives don't have the same speed on all tracks. The platters are
built-up from zones with different recording densities: zones near the
center of the platters have a lower recording density and hence a lower
datarate (less bits/second pass under the head). Zones at the outer
diameter have a higher recording density and a higher datarate.


Erik

-- 
+-- Erik Mouw -- www.harddisk-recovery.nl -- 0800 220 20 20 --
| Lab address: Delftechpark 26, 2628 XH, Delft, The Netherlands
| Data lost? Stay calm and contact Harddisk-recovery.com
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/