Indeed.
One reason for being interested in a lot more numbers and a variety of loads
is that there's an effect, predicted by Andea, that I'm watching for: both
aging+rmap and lru+rmap do swapout in random order with respect to virtual
memory, and this should in theory cause increased seeking on swap-in. We
didn't see any sign of such degradation vs mainline, in fact we saw a
significant overall speedup. It could be we just haven't got enough data
yet, or maybe there really is more seeking for each swap-in, but the effect
of less swapping overall is dominant.
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