Date: Fri, 12 Sep 2003 09:58:05 -0400 From: Jesse Guardiani <jesse@wingnet.net> To: freebsd-questions@freebsd.org Subject: Re: `top` process memory usage: SIZE vs RES Message-ID: <bjsjdd$vgh$2@sea.gmane.org> References: <bjqs64$6i9$1@sea.gmane.org> <20030911231742.GA61528@dan.emsphone.com>
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Dan Nelson wrote: > In the last episode (Sep 11), Jesse Guardiani said: >> 1.) Where is my Free memory going? I can't account for it >> in the SIZE and RES columns of the various processes. >> These are relatively constant. > > Disk cache. I thought it might be something like that. My large test messages are being written to disk over and over and over as the message travels down the pipline. Makes a great case for installing a RAM disk. :) > >> 2.) What, exactly, is RES? `man top` describes it as this: >> "RES is the current amount of resident memory", but does >> that mean RES is included in SIZE? Or does that mean that >> RES should be counted in addition to SIZE? > > RES the amount of SIZE that it currently in core OK. To clarify, you mean core kernel memory here? If so, how is that significant? Why should I care? In other words, why would I ever want to know that? Thanks. -- Jesse Guardiani, Systems Administrator WingNET Internet Services, P.O. Box 2605 // Cleveland, TN 37320-2605 423-559-LINK (v) 423-559-5145 (f) http://www.wingnet.net
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