From owner-freebsd-current@FreeBSD.ORG  Sat Oct 22 12:24:43 2005
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
X-Original-To: current@freebsd.org
Delivered-To: freebsd-current@FreeBSD.ORG
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 3677916A41F
	for <current@freebsd.org>; Sat, 22 Oct 2005 12:24:43 +0000 (GMT)
	(envelope-from PeterJeremy@optushome.com.au)
Received: from mail04.syd.optusnet.com.au (mail04.syd.optusnet.com.au
	[211.29.132.185])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 8B58343D46
	for <current@freebsd.org>; Sat, 22 Oct 2005 12:24:42 +0000 (GMT)
	(envelope-from PeterJeremy@optushome.com.au)
Received: from cirb503493.alcatel.com.au
	(c220-239-19-236.belrs4.nsw.optusnet.com.au [220.239.19.236])
	by mail04.syd.optusnet.com.au (8.12.11/8.12.11) with ESMTP id
	j9MCOTX4032454
	(version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO);
	Sat, 22 Oct 2005 22:24:30 +1000
Received: from cirb503493.alcatel.com.au (localhost.alcatel.com.au [127.0.0.1])
	by cirb503493.alcatel.com.au (8.12.10/8.12.10) with ESMTP id
	j9MCOTHh039790; Sat, 22 Oct 2005 22:24:29 +1000 (EST)
	(envelope-from pjeremy@cirb503493.alcatel.com.au)
Received: (from pjeremy@localhost)
	by cirb503493.alcatel.com.au (8.12.10/8.12.9/Submit) id j9MCOTjV039789; 
	Sat, 22 Oct 2005 22:24:29 +1000 (EST) (envelope-from pjeremy)
Date: Sat, 22 Oct 2005 22:24:29 +1000
From: Peter Jeremy <PeterJeremy@optushome.com.au>
To: Mikhail Teterin <mi+kde@aldan.algebra.com>
Message-ID: <20051022122429.GC39000@cirb503493.alcatel.com.au>
References: <200510211100.48429@aldan>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <200510211100.48429@aldan>
User-Agent: Mutt/1.4.2.1i
X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc
Cc: current@freebsd.org
Subject: Re: Why page-in a SIGKILL-ed process?
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 22 Oct 2005 12:24:43 -0000

On Fri, 2005-Oct-21 11:00:48 -0400, Mikhail Teterin wrote:
>17850 mi          1 -16    0  4158M  1118M wdrain 1   0:06  6.10% vim
>
>The question is: Why bother with paged-out parts of the process, when it
>is already doomed by SIGKILL?

wdrain appears to be associated with file I/O rather than paging
(though I may be wrong here).  Is it possible that vim had started
core-dumping before you SIGKILL'd it?  I've seen problems on other
OS's where core-dumping processes couldn't be killed and caused
significant performance degradation if they were very large.

-- 
Peter Jeremy