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Date: Thu, 27 Mar 1997 18:11:08 -0500
From: brianc@netrover.com (Brian Campbell)
To: bde@zeta.org.au (Bruce Evans)
Subject: Re: binary/resident size
References: <199703260745.SAA01189@godzilla.zeta.org.au>
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Bruce Evans writes:
> >Just for curiousity's sake I built an assembler program that consisted soley
> >of "jmp ." (just to keep track of how much idle time has been "wasted".
> >I suspect cp_time[CP_IDLE] could tell me the same thing, but not via ps
> >or top).
> 
> >What I don't understand is why VSZ is 132k and RSS is 20k.
> >
> >	UID   PID  PPID CPU PRI NI   VSZ  RSS WCHAN  STAT  TT       TIME COMMAND
> >	134  2443     1 333  74 20   132   20 -      RN    v1- 5502:24.27 idle
> >
> >It is run as 'idprio 31 nice -20 idle'.
> 
> I get an RSS of 24 under -current.  24 is easy to explain:
> 
> 	1 page text
> 	1 page stack
> 	1 page page directory
> 	1 page page table
> 	2 pages user area
> 
> I don't know what the big VSZ is for.

Now that I'm running 2.2.1 I get an RSS of 24 as well.

I just re-implemented it as a kernel thread (ala pagedaemon, vmdaemon,
etc), but while rebuilding my top binary I noticed an '#ifdef IDLE_PROC'.

Does FreeBSD-smp already have something like this?