*BSD News Article 60006


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From: terry@spcvxb.spc.edu (Terry Kennedy, Operations Mgr.)
Subject: Re: mystery page faults
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References: <4dmmpt$g0k@sleipnir.iaccess.com.au>
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Organization: St. Peter's College, US
Date: Fri, 19 Jan 1996 03:55:53 GMT
Message-ID: <1996Jan18.225553.1@spcvxb.spc.edu>
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Xref: euryale.cc.adfa.oz.au comp.unix.admin:37554 comp.unix.bsd.bsdi.misc:2204

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.

	Terry Kennedy		  Operations Manager, Academic Computing
	terry@spcvxa.spc.edu	  St. Peter's College, Jersey City, NJ USA
        +1 201 915 9381 (voice)   +1 201 435-3662 (FAX)