Re: New patch for Linux

[Rik van Riel <riel@redhat.com>]

Yair Wiseman wrote:
> It will work for larger amounts of memory. We just have to choose a longer time slice.

Sounds simple, but in practice you will run into the fact that users
don't really mind a 1 second latency during thrashing, but the 1 minute
(or more) latencies that may be required for this scheme to scale to
very large memory systems may be totally unacceptable.

> I will try to find a newer
> version, but I do not see the difference in this case.
 > We just suggest to replace the LRU-token approach.

I have no problem with replacing the LRU-token, if we can find
something that is shown to work better.  BSD style process
suspension has been tried many times on Linux and it never seemed
to work right.

Maybe your approach can be made to automatically work right on
machines of all memory sizes, but it would be good to demonstrate
that before committing to such a change.

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