Date: Wed, 7 Nov 2007 14:26:44 -0300 From: Mario Lobo <mario.lobo@ipad.com.br> To: freebsd-questions@freebsd.org Subject: Re: Memory problem Message-ID: <200711071426.44621.mario.lobo@ipad.com.br> In-Reply-To: <20071107152341.GA76731@owl.midgard.homeip.net> References: <200711071139.55971.mario.lobo@ipad.com.br> <20071107152341.GA76731@owl.midgard.homeip.net>
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On Wednesday 07 November 2007, Erik Trulsson wrote: > On Wed, Nov 07, 2007 at 11:39:55AM -0300, Mario Lobo wrote: > > Hello; > > > > I'm running a qmailrocks install + DNS server here. Hosting 14 domains > > and their respective e-mail accounts. Everything seems to be working > > fine. > > > > The machine is: > > > > ------------------------------------------ > > FreeBSD 6.2-STABLE #0: Mon Sep 10 14:15:16 BRT 2007 > > CPU: Intel(R) Core(TM)2 CPU 6700 @ 2.66GHz (2669.94-MHz K8-class CPU) > > Origin =3D "GenuineIntel" Id =3D 0x6f6 Stepping =3D 6 > > Cores per package: 2 > > real memory =3D 3488481280 (3326 MB) > > avail memory =3D 3362598912 (3206 MB) > > FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs > > cpu0 (BSP): APIC ID: 0 > > cpu1 (AP): APIC ID: 1 > > ------------------------------------------ > > > > When I turn the machine on/restart it, it starts off with around 2800 Mb > > free memory. I know that, in its course of work, a few of those process= es > > do not properly return memory back to the system. The machine was last > > restarted exactly a week ago (last wednesday). Now 'top' shows me this: > > > > ------------------------------------------ > > last pid: 17204; load averages: 0.00, 0.04, 0.06 up 5+21:00:50=20 > > 11:18:58 135 processes: 1 running, 132 sleeping, 2 zombie > > CPU states: 0.6% user, 0.0% nice, 0.4% system, 0.2% interrupt, 98.9% > > idle Mem: 379M Active, 1915M Inact, 256M Wired, 119M Cache, 214M Buf, > > 415M Free Swap: 5120M Total, 5120M Free > > ------------------------------------------ > > > > Here are my questions: > > > > Is this a "normal thing" to happen with memory in just one week? > > Yes, it is normal and nothing to worry about. > > > Does the '1915M Inact' means "zombie memory" (non-returned)? > > No. 'Inact[ive]', 'Cache' and 'Free' can all be considered free memory in > slighly different states. > There are differences between them that can be important in some > circumstances, but if you are just trying to determine if you have a memo= ry > leak somewhere they can be lumped together, > > > Is there a manual garbage collector i could run? > > No. > > > What is your advise on what method I could use to precisely track down > > what program(s) is(are) causing this? > > My advice is that you ignore it. It is nothing to worry about. Ok. Thanks Erik ! Pitty the majordomo cut out the .png file I sent. > I have seen memory "eaten up" by running anti-virus and mail scanning=20 > software particularly if you are not bouncing spam. =A0I would check your= =20 > spam handling. > >=A0 =A0 =A0 =A0 =A0-Derek Derek, what exactly do you suggest that I should check in the spam handling= =20 area ? =2D-=20 ********************************************************** //| //| Mario Lobo // |// | http://www.ipad.com.br // // ||||||| FreeBSD since 2.2.8 - 100% Rwindows-free **********************************************************
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