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>
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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.
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