with this:

http://simba.unix1.net/netbsd/diff.aobj-accounting


now UBC swaps out less agressively. system is quite usable under heavy
writes.

but please notice the word "quite".


it doesn't swap out anon pages so aggressive, but still too fast
deallocated text pages...


and write scheduling problem still persist


anyway it's huge step forward and i think this patch should be default.

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Where do you think you go today?