Re: [RFC][PATCH 1/2] Add explanation about min_free_kbytes to clarifyits effect

From: David Rientjes
Date: Fri Jan 07 2011 - 17:28:27 EST


On Fri, 7 Jan 2011, Satoru Moriya wrote:

> diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt
> index 30289fa..e10b279 100644
> --- a/Documentation/sysctl/vm.txt
> +++ b/Documentation/sysctl/vm.txt
> @@ -349,7 +349,8 @@ min_free_kbytes:
>
> This is used to force the Linux VM to keep a minimum number
> of kilobytes free. The VM uses this number to compute a
> -watermark[WMARK_MIN] value for each lowmem zone in the system.
> +watermark[WMARK_MIN] for each lowmem zone and
> +watermark[WMARK_LOW/WMARK_HIGH] for each zone in the system.
> Each lowmem zone gets a number of reserved free pages based
> proportionally on its size.
>

WMARK_MIN is changed for all zones.
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