Date: Thu, 2 Nov 1995 21:28:20 -0800 (PST) From: John Dyson <dyson> To: pgf@American.COM Cc: freebsd-questions@freebsd.org Subject: Re: what's counted in RSS and VSZ? Message-ID: <199511030528.VAA17394@freefall.freebsd.org> In-Reply-To: <199511030324.WAA05749@mozart.american.com> from "Paul Fox" at Nov 2, 95 10:24:48 pm
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> > here are the results: > > USER PID %CPU %MEM VSZ RSS TT STAT STARTED TIME COMMAND > pgf 8369 0.0 2.3 136 324 p3 S 10:21PM 0:00.04 simple.dynamic > pgf 8370 0.0 0.4 164 48 p3 S 10:21PM 0:00.01 simple.static > > questions: > > - how can RSS ever be bigger than VSZ? > The shared lib version does not include the shared lib in the VSZ, and the shared lib itself is 'prefaulted' into the processes address space by placing convieniently accessible (in memory) pages directly in. These pages count as part of the RSS even if they are not used. This significantly speeds up process start-up (most of the time.) John dyson@freebsd.org
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