Date: Thu, 02 Nov 1995 22:24:48 -0500 From: Paul Fox <pgf@American.COM> To: freebsd-questions@freebsd.org Subject: what's counted in RSS and VSZ? Message-ID: <199511030324.WAA05749@mozart.american.com>
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hi -- can someone tell me about the "resident set" and "virtual" sizes
as reported by ps? (i'm running 2.0.5, btw.) i'm trying to figure
whether and how shared stuff, like shared libs and shared memory regions,
are included in those numbers. i built a simple program, and linked it
statically and dynamically:
cc -o simple.dynamic simple.c
cc -static -o simple.static simple.c
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?
- why are the VSZ numbers for the two different builds different?
- how did:
main()
{
int i = 60;
while(i--) sleep(1);
}
get to be so damn big? :-)
- where would this be documented, if indeed it is documented at
all? (i'm not complaining if it isn't -- i'm mainly curious
about where to look for this kind of info.)
---------------------
paul fox american internet corporation
pgf@american.com
(home: pgf@foxharp.boston.ma.us)
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