Re: Memory leak?
:> I just checked the memory status of my new Dragonfly-based server.
:>
:> 38 processes: 38 running
:> 95653tates: 0.0% user, 0.0% nice, 0.0% system, 0.8% interrupt, 99.2% idle
:> Memory: 6598M Active, 3152M Inact, 1628M Wired, 186M Cache, 399M Buf, 283M Free
:
:Warning: pmap_interlock 0xfffffffe638e0ee0 0001000d
:
:I am wondering about the pmap_interlock warning...
:
:Many thanks,
:Damian
You can ignore the pmap_interlock messages, those are just debug
messages that we haven't removed yet.
Insofar as I can tell, your system is not leaking any memory. There
is simply no memory pressure so the VM system isn't trying very hard
to move stuff out of the active VM page queue and into the inactive
queue.
The memory is simply being used to cache files. It's basically free...
the system will throw away bits and pieces of the cache when
applications need to allocate memory.
Generally speaking you can tell whether your memory is being abused
by observing excessive paging activity to and from swap space (that is,
when the swapcache feature isn't being used with a SSD). Your swap is
essentially unused so there's definitely no memory abuse going on.
-Matt
Matthew Dillon
<dillon@backplane.com>
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