> > i don't know why anonmax is only 80% and not 90-95 by default
>
> It's pretty simple arithmetic, related to the *min settings for
> the other types, I would assume.
>
and i think is wrong. setting anonmax to 99 instead of 80 won't make much
difference in usual cases, but will makes things better in unusual like
simple few kB program processing gigabytes of data using for eg 500MB
memory on 512MB machine.