Re: What are the VM motivations??

From: Daniel Phillips (
Date: Sun Jun 24 2001 - 21:53:46 EST

On Monday 25 June 2001 03:46, Russell Leighton wrote:
> I read this thread as asking the question:
> If VM management is viewed as an optimization problem,
> then what exactly is the function that you are optimizing and what are
> the constraints?
> If you could express that well with a even a very loose model, then
> the code could be reviewed to see if it was really doing what was intended
> and assumptions could be tested.

May I suggested an algorithm?

  - Write down what you think the optimization constraints are.
    (be specific, for example, enumerate all the flavors of page types -
    process code, process data, page cache file data, page cache swap
    cache, anonymous, shmem, etc.)

  - Write down what you think the current algorithms are.
    (again, be specific, use file names, function names, pseudocode and
    snippets of existing code.)

  - Send it to Rik. He'll tell you if it's right.

  - Because life is short and should not be boring, cc it to Andrea as well

This way you save everybody's time and ensure you understand what's really
going on. Not to mention coming up with a document worth its weight in
dilithium crystals.

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This archive was generated by hypermail 2b29 : Sat Jun 30 2001 - 21:00:11 EST