Messages in this thread |  | | Date | Mon, 9 Oct 2000 22:58:22 +0200 | From | "Andi Kleen" <> | Subject | Re: [PATCH] VM fix for 2.4.0-test9 & OOM handler |
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On Mon, Oct 09, 2000 at 01:52:21PM -0700, Linus Torvalds wrote: > 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..
Would not help much when "they" eat your memory by loading big bitmaps into the X server which runs as root (it seems there are many programs which are very good at this particular DOS ;)
Also I think most oom situations are accidents anyways, not malicious users. When you're the only user of the machine sophisticated per user accouting won't be very useful.
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