wired memory - again!

[Wojciech Puchar]

> The kernel auto-tunes the vfs buffer space using the formula "for the
> first 64 MB of ram use 1/4 for buffers, plus 1/10 of the ram over 64

i always limit it by
kern.maxbcache=20000000

on 1GB RAM machine with lots of I/O but actually with default MAXBSIZE and 
little I/O you can use safely 1MB

It DOES NOT limit how much files are cached.

But still - in spite of that i have a lot of wired memory.

still it is bad nobody answered how to pin down "wired" memory use.

instead of experimenting i would like rather to understand what is what.