> > vm.filemax = 60
> > vm.filemin = 20
>
> Your settings here are somewhat odd.
>
> For example, consider that you reserve at least 30% of memory for exec
> and files. Having done so, you can NEVER achieve an anonmax of 95% --
> at most, 70% can be used for anons.

most cases but not never.

if on 1GB machine i will just run 100kB program doing scientific
computation and needing 950MB of RAM it will get it with anonmax 95%.