Oh, it wasn't an accident, I knew what I was trying to achieve.
It's just that I didn't immediately understand all the curlicues in
the page life cycles just from staring at the code. I had to see
the machine moving first. It was very instructive to see what
happened on reverting to a fifo strategy. It might even be a good
idea to put a proc hook in there to allow on-the-fly dumbing down
of the lru machinery. That way we can measure system behaviour
against a baseline without having to go through the
compile-reboot-bench cycle every time, which eats a major amount
of time.
> Reading a bunch of 2Q, LRU/k, ... papers and thinking
> about the problem very carefully should help us a bit
> in this. Lots of researches have already looked into
> this particular problem in quite a lot of detail.
Yep, unfortunately the subject of memory management in operating
systems seems to have received a lot less attention than memory
management in databases.
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