Process size.

Jeremy Chadwick
Thu, 14 Aug 2008 07:44:40 -0000

On Thu, Aug 14, 2008 at 09:30:00AM +0300, Sergey Chumakov
wrote:
> Hello,
>
> FreeBSD 7.0-RELEASE-p3 #3
>
> $top
> ...
>   PID USERNAME  THR PRI NICE   SIZE    RES STATE  C   TIME   WCPU COMMAND
> 36032 root     2838  44    0  1917M  1493M ucond  0 406:39  3.03% CGServer
> ...
>
> $cat /boot/loader.conf.local
> ...
> kern.maxdsiz="1073741824"
> kern.maxssiz="134217728"
> kern.dfldsiz="1073741824"
>
> $limits
> Resource limits (current):
> ...
>   datasize          1048576 kB
>   stacksize          131072 kB
>
> How and why is it possible for process to grow up to 1493M and even
> more? I suppose, it will be able to eat all available system memory (was
> killed).

Do resource limits apply to root?

I wonder if it's an issue of calculation in top; top might be including
page sizes and other VM-related things, while limits datasize and stacksize
may only be specific to those allocated amounts.

If this machine was running RELENG_7 (STABLE), it would have procstat,
which could help discern where the "extra" memory is.

Also: is this i386 or amd64?

--
| Jeremy Chadwick                                jdc at parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |