>>>>> "Rik" == Rik van Riel <riel@conectiva.com.br> writes:
Rik> On Sun, 12 Mar 2000, Adam wrote:
>> > The idea I had a few weeks ago to solve the problem and so to find out the
>> > hog (and that I'll experiment in real life 2.3.x soon) is to add a
>> > per-task page fault rate (ala avg_slice). Once we'll know the page fault
>> > rate and the time of the last fault per each process, we'll be almost able
>> > to find out the memory hog without possible mistakes and we won't need
>> > anything else.
>>
>> That sounds interesting. I would be interested to see actual
>> statistic of the per task page faults.
Rik> It is definately interesting, HOWEVER the OOM rescue code is
Rik> only to be run in an emergency.
We've done this (calculated per-task fault rates) here as part of
other memory-management experiments --- I'll clean up the diffs and
send them to the kernel list soon.
One thing that became clear as we did it is that the
setrlimit(RLIMIT_RSS,) call is a no-op. So we're also trying to fix
that.
Our work is currently against 2.2.14, but the patches shouldn't be too
hard to put into 2.3.51.
Peter C
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