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SubjectRe: [-mm] Disable the memory controller by default
Andi Kleen wrote:
> On Mon, Apr 07, 2008 at 05:21:37PM +0530, Balbir Singh wrote:
>> Due to the overhead of the memory controller. The
>> memory controller is now disabled by default. This patch changes
>> cgroup_disable to cgroup_toggle, so that each controller can decide
>> whether it wants to be enabled/disabled by default.
>> If everyone agrees on this approach and likes it, should we push this
>> into 2.6.25?
> First I like the change to make it disabled by default.
> I don't think "toggle" is good semantics for a user visible switch
> because that changes the meaning when the kernel default changes
> (which it will likely once the current default overhead is fixed)
> It should be rather: cgroup=on/off

The boot control options apply to all controllers and we want to allow
controllers to decide whether they should be turned on or off. With sufficient
documentation support in Documentation/kernel-parameters.txt, don't you think we
can expect this to work as the user intended?

Warm Regards,
Balbir Singh
Linux Technology Center

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