[LARTC] measure cpu load ?

[LARTC] measure cpu load ?

[Lars Landmark]

Hi,

I would like to measure the CPU load for some queuing discipline, and only 
queuing discipline. Is there any tool witch this can be done.

Best regards 

Lars Landmark
Student

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Re: [LARTC] measure cpu load ?

[David Boreham]

> I would like to measure the CPU load for some queuing discipline, and only
> queuing discipline. Is there any tool witch this can be done.

I think you will need to do this indirectly.

Perform an experiment like this:

Setup a test machine. It runs nothing but traffic management.

Push test traffic through the machine.

Observe the machine's CPU load.

You can now derive the relationship between traffic level,
traffic mix, traffic type and CPU load, by repeating the experiment
with different input variables.




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[LARTC] measure cpu load ?

[Srikanth]

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>> I would like to measure the CPU load for some queuing discipline, and only
>> queuing discipline. Is there any tool witch this can be done.

>I think you will need to do this indirectly.

>Perform an experiment like this:

>Setup a test machine. It runs nothing but traffic management.

>Push test traffic through the machine.

>Observe the machine's CPU load.

>You can now derive the relationship between traffic level,
>traffic mix, traffic type and CPU load, by repeating the experiment
>with different input variables.


You can try with ttcp tool.

Srikanth.




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Re: [LARTC] measure cpu load ?

[Martin Devera]

You can did it by wrapping xxx_dequeue routine of the qdisc
by calls to TSC counter and accumulate these differences over
some time.
I measured CBQ and HTB cpu usage by this way as can be seen
at HTB home page.
devik

On Fri, 25 Apr 2003, Srikanth wrote:

> >> I would like to measure the CPU load for some queuing discipline, and only
> >> queuing discipline. Is there any tool witch this can be done.
>
> >I think you will need to do this indirectly.
>
> >Perform an experiment like this:
>
> >Setup a test machine. It runs nothing but traffic management.
>
> >Push test traffic through the machine.
>
> >Observe the machine's CPU load.
>
> >You can now derive the relationship between traffic level,
> >traffic mix, traffic type and CPU load, by repeating the experiment
> >with different input variables.
>
>
> You can try with ttcp tool.
>
> Srikanth.
>
>
>
>
> ------------------------------------------------------------------------
>

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