Date: Fri, 19 Dec 2008 17:00:43 +0100 (CET) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: FreeBSD <freebsd@optiksecurite.com> Cc: Jerry McAllister <jerrymc@msu.edu>, freebsd-questions@freebsd.org Subject: Re: SOLVED: Simple swap question Message-ID: <20081219165910.O2189@wojtek.tensor.gdynia.pl> In-Reply-To: <494BBFCA.5060305@optiksecurite.com> References: <494A693A.5050204@optiksecurite.com> <200812181028.18306.kirk@strauser.com> <20081218163632.GE5150@torus.slightlystrange.org> <494A820E.2030907@optiksecurite.com> <20081219040719.GA83557@gizmo.acns.msu.edu> <494BBFCA.5060305@optiksecurite.com>
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>> ////jerry >> >> > Because this server is monitored by Nagios and it emails me every hour a > warning because the swap is not 100% free (I know it's pretty extreme, but I > want to know if the system is swapping). > > I just tried > > swapoff -a ; swapon -a > > and it worked great. > under completely normal operation when programs fit in real memory swapping CAN occur because of file caching. while programs have priority over file cache in memory, long-unused parts of system can be swapped out. i don't know what's nagios, but configure it to warn you not because there are swap used, but if there is more than a little swapping activity.
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