On Mon, Oct 8, 2012 at 9:26 PM, Sushanth Rai <sushanth_...@yahoo.com> wrote: > I was trying to co-relate the o/p from "top" to that I get from vmstat -z. I > don't have any user programs that wires memory. Given that, I'm assuming the > wired memory count shown by "top" is memory used by kernel. Now I would like > find out how the kernel is using this "wired" memory. So, I look at dynamic > memory allocated by kernel using "vmstat -z". I think memory allocated via > malloc() is serviced by zones if the allocation size is <4k. So, I'm not sure > how useful "vmstat -m" is. I also add up memory used by buffer cache. Is > there any other significant chunk I'm missing ? Does vmstat -m show memory > that is not accounted for in vmstat -z.
All allocations by malloc that are larger than a single page are served by uma_large_malloc, and as far as I can tell these allocations will not be accounted for in vmstat -z (they will, of course, be accounted for in vmstat -m). Similarly, all allocations through contigmalloc will not be accounted for in vmstat -z. _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
