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Date:      Mon, 22 Jan 2001 08:08:24 +0100
From:      Jeroen Ruigrok van der Werven <jruigrok@via-net-works.nl>
To:        Alex Kapranoff <alex@kapran.bitmcnit.bryansk.su>
Cc:        current@FreeBSD.ORG, questions@FreeBSD.ORG
Subject:   Re: Lots of page faults
Message-ID:  <20010122080824.D22424@lucifer.bart.nl>
In-Reply-To: <20010120103135.A10608@kapran.bitmcnit.bryansk.su>; from alex@kapran.bitmcnit.bryansk.su on Sat, Jan 20, 2001 at 10:31:37AM %2B0300
References:  <20010120103135.A10608@kapran.bitmcnit.bryansk.su>

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-On [20010120 08:40], Alex Kapranoff (alex@kapran.bitmcnit.bryansk.su) wrote:
>Additional symptoms include very high system CPU state percentage and
>a lot of page faults.

A page fault is not a bad thing, it is merely an indicator from the CPU
to the kernel that the page you want to refer to, the next page of
executable data of the application you are running, is not in memory
[yet].
The CPU causes a page fault and the kernel pages in the part(s) of the
application to memory and then resumes operation, now being able to
refer to the appropriate page.

[snip]

>Is my RAM rotting or what?

Given you get coredumps on cc, as and such, it could be.  But not
always, I have had current give me coredumps in cc and as before but
that was due to problems in the binaries themselves after some changes
in the world.

-- 
Jeroen Ruigrok van der Werven          VIA Net.Works The Netherlands
BSD: Technical excellence at its best  Network- and systemadministrator
	  D78D D0AD 244D 1D12 C9CA  7152 035C 1138 546A B867
Killing me is not enough to make me go away...


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