Re: 2.6.0-test9 - poor swap performance on low end machines

From: Andrea Arcangeli
Date: Wed Dec 10 2003 - 16:56:29 EST


On Mon, Dec 08, 2003 at 12:48:17PM -0800, William Lee Irwin III wrote:
> qsbench I'd pretty much ignore except as a control case, since there's
> nothing to do with a single process but let it thrash.

this is not the point. If a single process like qsbench trashes twice as
fast in 2.4, it means 2.6 has some great problem in the core vm, the
whole point of swap is to trash but to give the task more physical
virtual memory. I doubt you can solve it with anything returned by
si_swapinfo.
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