Wired memory monitoring

[Ryan Sommers]

Jan Srzednicki wrote:

>Hello,
>
>I am investigating some VM issues on FreeBSD. I have noticed that wired
>memory grows quite rapidly on forking lots of processes. After those
>processes exit, it drops a bit, but still can use about 100MB after
>launching 3000 processes. I think it's not a leak, as subsequent forks
>don't cause it to grow noticeably.
>
>I'm rather curious what eats all that memory. sysctl vm.zone shows some
>high values, but they're are not high in memory usage terms, even
>considering 50% (or so) efficiency of the slab allocator.
>
>The question is, are there any other memory inspecting tools that would
>allow me to see where is all that wired memory? And, are there any ways
>to control it's behaviour (eg. to free unused per-process structures and
>data)?
>
>greetings,
>  
>
Wouldn't that be the zone allocator grabbing pages from the free list 
and adding them to non-pagable per process structures?

-- 
Ryan Sommers
ryans at gamersimpact.com