Re: [RFC 1/2] Protect larger order pages from breaking up

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On February 16, 2018 7:02:53 PM GMT+01:00, Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote:
>On 02/16/2018 08:01 AM, Christoph Lameter wrote:
>> Control over this feature is by writing to /proc/zoneinfo.
>> 
>> F.e. to ensure that 2000 16K pages stay available for jumbo
>> frames do
>> 
>> 	echo "2=2000" >/proc/zoneinfo
>> 
>> or through the order=<page spec> on the kernel command line.
>> F.e.
>> 
>> 	order=2=2000,4N2=500
>
>
>Please document the the kernel command line option in
>Documentation/admin-guide/kernel-parameters.txt.
>
>I suppose that /proc/zoneinfo should be added somewhere in
>Documentation/vm/
>but I'm not sure where that would be.

It's in Documentation/sysctl/vm.txt and in 'man proc' [1]

[1] https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/man5/proc.5

>thanks,

-- 
Sincerely yours,
Mike.

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