Re: [PATCH] VM fix for 2.4.0-test9 & OOM handler

[Linus Torvalds]

On Mon, 9 Oct 2000, Andi Kleen wrote:
> 
> netscape usually has child processes: the dns helper. 

Yeah.

One thing we _can_ (and probably should do) is to do a per-user memory
pressure thing - we have easy access to the "struct user_struct" (every
process has a direct pointer to it), and it should not be too bad to
maintain a per-user "VM pressure" counter.

Then, instead of trying to use heuristics like "does this process have
children" etc, you'd have things like "is this user a nasty user", which
is a much more valid thing to do and can be used to find people who fork
tons of processes that are mid-sized but use a lot of memory due to just
being many..

                        Linus

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