Re: [vserver] new kernels include scheduler and memory limitation

From: Daniel Hokka Zakrisson <>
Date: Sun 20 Apr 2008 - 15:15:49 BST
Message-ID: <59330.>

ADNET Ghislain wrote:
> 1.2. Real Time Group scheduling
> 1.1. Memory Resource Controller
> It seems that the last kernel include some tech that seem complementary
> to the vserver function, do the vserver project looked into this and
> does it help or hinder the project that the kernel head this way ?

Both. It's better long-term to have things in the mainline kernel, as
porting to newer kernels won't be as big of a task. Short-term it's a
pain, as porting to the kernels that add this kind of feature is a lot of
work since all the previous testing is now irrelevant, and needs to be
redone. It also requires hooking in to new subsystems, which is always

It should also be noted that the group scheduling present in the mainline
kernel is not able to limit anything. It just schedules fairly between the

> As the new patches are still for the .22 kernel i was thinking that
> all those new kernel features were studied by the vserver team. I just
> wonder in which way it help or hinder the project. Any insider's
> information about the latest kernel evolution and their influences on
> the project ?
> --
> Cordialement,
> Ghislain

Daniel Hokka Zakrisson
Received on Sun Apr 20 15:16:03 2008
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