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Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) [message #6412 is a reply to message #6386] Fri, 15 September 2006 16:52 Go to previous messageGo to previous message
Rohit Seth is currently offline  Rohit Seth
Messages: 101
Registered: August 2006
Senior Member
On Fri, 2006-09-15 at 13:26 +0400, Kirill Korotaev wrote:
> Chandra Seetharaman wrote:
>
> > esoteric ?! Please look at the different operating system that provide
> > resource management and other resource management capability providers.
> > All of them have both guarantees and limits (they might call them
> > differently).
> >
> > Here are a few:
> > http://www.hp.com/go/prm
> > http://www.sun.com/software/resourcemgr/
> > http://www.redbooks.ibm.com/redbooks/pdfs/sg245977.pdf
> > http://www.vmware.com/pdf/vmware_drs_wp.pdf
> > http://www.aurema.com
> have you ever tested any of these?!
> there is no _memory_ guarantees AFAIK in all of them except

Interesting...

> for VMware which can reserve required amount of RAM for VM.

It is much easier to provide guarantees in complete virtual
environments. But then you pay the cost in terms of performance.

I think we should punt on hard guarantees and fractions for the first
draft. Keep the implementation simple.

-rohit

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