Re: [patch 2.6.13-rc6] docs: fix misinformation aboutovercommit_memory

[Andrew Morton]

Chuck Ebbert <76306.1226@xxxxxxxxxxxxxx> wrote:
>
> +Controls overcommit of system memory:

It should explain what "overcommit" is.

>  +
>  +0	-	Heuristic overcommit handling. Obvious overcommits of
>  +		address space are refused. Used for a typical system. It
>  +		ensures a seriously wild allocation fails while allowing
>  +		overcommit to reduce swap usage.  root is allowed to
>  +		allocate slighly more memory in this mode. This is the
>  +		default.
>  +
>  +1	-	Always overcommit. Appropriate for some scientific
>  +		applications.
>  +
>  +2	-	Don't overcommit. The total address space commit
>  +		for the system is not permitted to exceed swap + a
>  +		configurable percentage (default is 50) of physical RAM.

Configurable how?

>  +		Depending on the percentage you use, in most situations
>  +		this means a process will not be killed while accessing
>  +		pages but will receive errors on memory allocation as
>  +		appropriate.
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