-----Original Message-----
From: MAEDA Naoaki [mailto:[EMAIL PROTECTED]
Sent: Thu 2/16/2006 11:18 AM
To: Suryanarayanan, Rajaram
Cc: [email protected]
Subject: Re: [ckrm-tech] How to see the benefits of CKRM ?
Hi Rajaram,
> I want to practically see the benefits of CKRM CPU resource controller
> on my PC.
>
> For example, I would like to see something like :
>
> how a process in a class C1 with a high share of CPU runs faster than
> another process in a class C2 with a low share of CPU.
>
> Could anyone please suggest me some effective ways of trying this ?
Please notice the following two things:
1) Choose CPU bound processes to run
CPU controller cannot regulate I/O bound and mostly sleeping
process's speed.
2) Total number of CPU bound processes must be more than the number of CPU
It is because surplus CPU can be consumed by any processes regardless
of share. The share is not limit, but minimum guarantee. For example,
if only two CPU hog process run on 2CPU machine, each of them can
consume one whole CPU regardless of share.
Have you downloaded the pdf file, cpurc-v0.3-2615-kernbench.pdf on the
project web site? It shows the results of kernbench on several conditions.
> I remember seeing details about kernbench in this mailing list. Would
> kernbench be useful for my purpose ?
One flaw of kernbench for this purpose is that measuring kernbench is
time consuming, but it is useful for demonstrating CPU controller.
Thanks,
MAEDA Naoaki
Thanks MAEDA.
In my case, I have a single CPU machine. Is there any tests already, to test
CPU resource controller and feel the difference of using CKRM ? or to
demonstrate CKRM ?
Any suggestions ?
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