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Subject: Re: FreeBSD-10 and processes swapping out for no reason
From: Dmitry Sivachenko <trtrmitya@gmail.com>
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Date: Fri, 10 Jan 2014 01:08:35 +0400
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On 07 =D1=8F=D0=BD=D0=B2. 2014 =D0=B3., at 20:16, Dmitry Sivachenko =
<trtrmitya@gmail.com> wrote:

> Hello!
>=20
> Recently I updated several of my servers from 9.2-STABLE 10.0:
> 10.0-PRERELEASE FreeBSD 10.0-PRERELEASE #0 r259661
>=20
> Workload did not change at all, same programs, same load, same =
hardware.
>=20
> I noticed that some of the processes on 10.0 boxes are marked as =
swapped out in top(1) output:
>=20
> 1436 root            1  43    0 16524K     0K nanslp 14   1:14   0.00% =
<cron>
> 1381 smmsp           1  20    0 23988K     0K pause  18   0:04   0.00% =
<sendma
> 99348 mitya           1  21    0 23492K     0K pause  16   0:00   =
0.00% <csh>
>=20
> ps also shows them as swapped out (W as second character in state =
field):
> 1381  -  IWs       0:00.00 sendmail: Queue runner@00:30:00 for =
/var/spool/clie
> 1436  -  IWs       0:00.00 /usr/sbin/cron -s
> 80231  -  IWs       0:00.00 /usr/local/sbin/collectdmon -c =
/usr/local/sbin/coll
> 99348  1  IWs       0:00.00 -csh (csh)
>=20
> These machines have enought RAM and that never happened on 9.2-STABLE.
>=20
> I turned off swap:
> # swapinfo
> Device          1K-blocks     Used    Avail Capacity
> #
>=20
> And state of these processes did not change: still second characted in =
state field of ps output is W, and top shows them in angles.
>=20
> How should I treat that?
>=20
> Thanks.



Anyone else observing this?  Right now looks like I can't trust top(1) =
values for RES and ps(1) states.