Disk Performance Plugin

[roger]

Hi,

My system is Mandrake 9.1 (kernel 2.4.21).
This system comes with the "extended disk statistics in /proc/partitions" 
patch/feature, conditional on CONFIG_BLK_STATS set when configuring/compiling 
the kernel.

I believe this "extended disk statistics" feature is also provided with the 
standard 2.4.21 kernel.org (I think this is a back-port from 2.5!?).

If your 2.4 kernel hasn't got these extended disk statistics, you can retrieve 
the rsect/wsect data from /proc/stat.
However, I'm not sure you will get these statistics at the partition level - I 
mean I'm afraid that the only statistics you can get will be for the whole 
disk only.

Unfortunately, the plugin doesn't consider /proc/stat at all, which would be 
required for older kernels. That's why still work needs to be done.
Are you interested???

If so, I can provide you with the source code + some information on how to 
read /proc/stat

Cheers,
Roger


On Tue, 23 Sep 2003 01:11 pm, Bob Snyder wrote:
> Roger write:
> >I've just written (for myself) a plug in (DiskPerf) displaying
> > disk/partition performance based on the rsect/wsect data provided by the
> > kernel through /proc/partitions.
>
> On my system (kernel 2.4.20) /proc/partitions lists the device major and
> minor numbers and the number of blocks in each partition for each hard
> drive. What kernel are you running?
>
> Or am I missing something here.
>
> Bob S.
>
>
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