QoS system for the memory in Linux

chapel · 07-31-2007, 06:14 PM

I'm trying to develop a kind of QoS system for the memory in Linux for an university project, I could not find anything in this direction searching in the web and mail lists but maybe there exist something yet implemented or an starting project that can help me.
If this is the case and anybody of you know about it, can you please give me any hint. I'm a bit lost in this field.

Thanks a lot,

macemoneta · 07-31-2007, 06:21 PM

You'll need to define what you are looking for in a little more detail.

chapel · 07-31-2007, 08:31 PM

I want to garantize a quota or % of memory to one user (all of his processes).

macemoneta · 07-31-2007, 08:50 PM

The only place you see that type of memory management is in a hypervisor, like Xen or VMWare. Take a look at the Xen code for the kernel.

chapel · 08-01-2007, 06:32 PM

Anybody can help me???? I'm dissapointed...

macemoneta · 08-01-2007, 08:09 PM

Disappointed with what? What are you looking for?

chapel · 08-02-2007, 05:14 PM

Quote:

Originally Posted by macemoneta

Disappointed with what? What are you looking for?

Sorry, but I would not ofend you. I'm desesperated because I don't koow what I looking for...

macemoneta · 08-02-2007, 05:21 PM

Well, if you don't know what you are looking for, we can't help you find it. Good luck in your search.

chapel · 08-02-2007, 05:32 PM

I'm looking for, if exists some thing/application/kernel patch to garantize a quota or % of memory for one user. When this user needs the memory for some proces, he always have a quota or % of memory.

Thanks a lot,
Chapel Evergreen.

macemoneta · 08-02-2007, 05:42 PM

That's why I pointed you to the Xen kernel code; it will show you how to accomplish that. If you are looking for a finished product that will satisfy the requirements of your project, I can guarantee that you won't find it.

syg00 · 08-02-2007, 07:22 PM

There is development to provide this in the mainline kernel - amongst other things.
Last I checked my mail the interested parties were in heavy (re-)architecture discussions.
Again.

Check LKML for "containers".

chapel · 08-02-2007, 07:25 PM

I believe that you say is absoluty true, but do you have some idea how to implement something similar in a normal computer (non virtual machines) ??

chapel · 08-02-2007, 07:29 PM

Quote:

Originally Posted by syg00

There is development to provide this in the mainline kernel - amongst other things.
Last I checked my mail the interested parties were in heavy (re-)architecture discussions.
Again.

Check LKML for "containers".

Thank you, I will investigate about it.