From owner-freebsd-hackers@FreeBSD.ORG Tue Oct 25 20:50:58 2011 Return-Path: Delivered-To: freebsd-hackers@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6D3AC106566B for ; Tue, 25 Oct 2011 20:50:58 +0000 (UTC) (envelope-from bapt@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 56F888FC0A; Tue, 25 Oct 2011 20:50:58 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p9PKowtp052188; Tue, 25 Oct 2011 20:50:58 GMT (envelope-from bapt@FreeBSD.org) Received: (from bapt@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p9PKovBe052102; Tue, 25 Oct 2011 20:50:57 GMT (envelope-from bapt@FreeBSD.org) X-Authentication-Warning: freefall.freebsd.org: bapt set sender to bapt@FreeBSD.org using -f Date: Tue, 25 Oct 2011 22:50:54 +0200 From: Baptiste Daroussin To: Stefan Bethke Message-ID: <20111025205054.GB86420@azathoth.lan> References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="3uo+9/B/ebqu+fSQ" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Cc: freebsd-hackers@FreeBSD.org Subject: Re: iotop (dtrace?) X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Oct 2011 20:50:58 -0000 --3uo+9/B/ebqu+fSQ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Oct 25, 2011 at 10:34:39PM +0200, Stefan Bethke wrote: > I've got two systems with a constantly high rate of disk I/O that sometim= es seems to be overwhelmed from it. Before trying to decide if a hardware = upgrade will help, I'd like to figure out which processes generate the load. >=20 > I've found a couple scripts named iotop which appear to produce what I wo= uld be interested in, but they appear to require Solaris or Linux.=20 >=20 > Has someone ported over one of them, or would have a suggestion how to go= about writing a custom dtrace script to gather this kind of information? >=20 > I can successfully run a couple of sample dtrace scripts on these 8-stabl= e amd64 boxes. >=20 Can't 'top -mio' do the job? regards, Bapt --3uo+9/B/ebqu+fSQ Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (FreeBSD) iEYEARECAAYFAk6nIS4ACgkQ8kTtMUmk6EzKAQCgrj1h2iSg1OLKc5opyxNbTALT h7AAnRFLRm0ThK0C2kyvSIb0+rlRTQxJ =m2f7 -----END PGP SIGNATURE----- --3uo+9/B/ebqu+fSQ--