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List:       kde-bugs-dist
Subject:    Bug#24349: disk accesses not reported
From:       Chris Schlaeger <cs () kde ! org>
Date:       2001-04-30 16:03:10
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On Tue, Apr 24, 2001 at 10:24:13PM -0700, LA Walsh wrote:
> Chris Schlaeger wrote:
> 
> > So you don't see any traffic for all devices in the sensor browser?
> 
> Correct.  Copying a 600+Meg dir from one system to another shows the network traffic but no
> disk activity on either.  Hmmm....don't feel bad.  There's something else going on.  vmstat shows
> bi/bo, but 'iostat' shows nothing when I'm doing a 'du -s' of my disk.  So something is screwy
> somewhere with detection.  Is there something in /proc that may be missing?

ksysguard reads the disk throughput directly from the proc
filesystem. The line starting with 'disk_io:' in /proc/stat in
particular. On a 2.2 kernel it looks like this:

disk 1875954 112942 0 0
disk_rio 1020667 33189 0 0
disk_wio 855287 79753 0 0
disk_rblk 8004092 216492 0 0
disk_wblk 6841468 636980 0 0

and on 2.4 it looks like this:

disk_io: (3,0):(1712052,1320579,26699386,391473,14276832)

If your number look somewho reasonable and change over time during
disk access I would like to get a copy of you /proc/stat.

Chris

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