Date: Fri, 10 Jan 2014 01:08:35 +0400 From: Dmitry Sivachenko <trtrmitya@gmail.com> To: hackers@freebsd.org Subject: Re: FreeBSD-10 and processes swapping out for no reason Message-ID: <BE4C690E-4F75-41BE-9BC2-17D79F66B8ED@gmail.com> In-Reply-To: <FDB6C5BD-54EB-4CDC-99BC-F8350196ADE0@gmail.com> References: <FDB6C5BD-54EB-4CDC-99BC-F8350196ADE0@gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On 07 янв. 2014 г., at 20:16, Dmitry Sivachenko <trtrmitya@gmail.com> wrote: > Hello! > > Recently I updated several of my servers from 9.2-STABLE 10.0: > 10.0-PRERELEASE FreeBSD 10.0-PRERELEASE #0 r259661 > > Workload did not change at all, same programs, same load, same hardware. > > I noticed that some of the processes on 10.0 boxes are marked as swapped out in top(1) output: > > 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> > > 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) > > These machines have enought RAM and that never happened on 9.2-STABLE. > > I turned off swap: > # swapinfo > Device 1K-blocks Used Avail Capacity > # > > 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. > > How should I treat that? > > Thanks. Anyone else observing this? Right now looks like I can't trust top(1) values for RES and ps(1) states.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?BE4C690E-4F75-41BE-9BC2-17D79F66B8ED>