*BSD News Article 59468


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From: "Alan E. Ross" <alan@popi.net>
Newsgroups: comp.unix.admin,comp.unix.bsd.bsdi.misc
Subject: Re: mystery page faults
Date: Fri, 19 Jan 1996 09:15:41 -0800
Organization: CONVEX Computer Corporation, Richardson, TX USA
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Message-ID: <30FFD1BD.2627@popi.net>
References: <4dmmpt$g0k@sleipnir.iaccess.com.au> <1996Jan18.225553.1@spcvxb.spc.edu>
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Terry Kennedy, Operations Mgr. wrote: 
> In article <4dmmpt$g0k@sleipnir.iaccess.com.au>, username@iaccess.com.au (Real Name) writes:
> > I have these mysterious page faults showing up.
> >
> > bash# vmstat -w 5
> >  procs   memory     page                    disks     faults      cpu
> >  r b w   avm   fre  flt  re  pi  po  fr  sr wd0 wd1   in   sy  cs us sy id
> >  0 0 0     0 12964  112  13   0   0   0   0   3   0  158  124  15  4  3 93
> >
> > When ever I check swap space there is never any used.
> >
> > Sometimes the page faults are very high.
> 
>   I think process activation (paging the executable into memory) generates
> page faults.

That's true Terry, but only for the faults/in category.  I think the question 
here was why the faults *out* of memory, but no swap space used up.

Alan Ross