From owner-freebsd-questions@FreeBSD.ORG Thu Feb 1 18:44:17 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id C67D516A400 for ; Thu, 1 Feb 2007 18:44:17 +0000 (UTC) (envelope-from freebsd-listen@fabiankeil.de) Received: from smtprelay05.ispgateway.de (smtprelay05.ispgateway.de [80.67.18.43]) by mx1.freebsd.org (Postfix) with ESMTP id 3C1B413C441 for ; Thu, 1 Feb 2007 18:44:16 +0000 (UTC) (envelope-from freebsd-listen@fabiankeil.de) Received: (qmail 25672 invoked from network); 1 Feb 2007 18:17:36 -0000 Received: from unknown (HELO localhost) (775067@[217.50.150.85]) (envelope-sender ) by smtprelay05.ispgateway.de (qmail-ldap-1.03) with SMTP for ; 1 Feb 2007 18:17:36 -0000 Date: Thu, 1 Feb 2007 19:17:18 +0100 From: Fabian Keil To: freebsd-questions@freebsd.org Message-ID: <20070201191718.721cfe32@localhost> In-Reply-To: <200702011717.l11HHohf046488@dc.cis.okstate.edu> References: <200702011717.l11HHohf046488@dc.cis.okstate.edu> X-Mailer: Claws Mail 2.6.1 (GTK+ 2.10.6; i386-portbld-freebsd6.2) X-PGP-KEY-URL: http://www.fabiankeil.de/gpg-keys/freebsd-listen-2008-08-18.asc Mime-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_7lwzv/dAEe38se0AGoRye.e"; protocol="application/pgp-signature"; micalg=PGP-SHA1 Subject: Re: What Happens When /proc is not Mounted in FreeBSD5.4? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Feb 2007 18:44:17 -0000 --Sig_7lwzv/dAEe38se0AGoRye.e Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Martin McCormick wrote: > I made a startling discovery when using strace to > trouble-shoot a different problem on a freeBSD5.4 system that has > been running since last October. Both it and another new 5.4 > system had a /proc mount point but no process files. If I remember correctly procfs is off by default for security reasons. > Would an unmounted /proc make the system run slower since > proc files allow for examination of the operation of the running > processes? procfs is for user land applications, the kernel obviously has other means to examine running processes. I doubt that mounting procfs (without using it) has any measurable effect on the system's performance, but if it does, I would assume that it decreases performance rather than increasing it. Fabian --Sig_7lwzv/dAEe38se0AGoRye.e Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFFwi68BYqIVf93VJ0RAifHAJ9diLuFw8tw0EZl5M4AHwuRYMb4xgCeNF5f 5E4RqcjETL3iNMWjd8xLncQ= =C8fa -----END PGP SIGNATURE----- --Sig_7lwzv/dAEe38se0AGoRye.e--