From owner-freebsd-fs@FreeBSD.ORG Mon Jun 8 07:01:35 2009 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1E13010656C0 for ; Mon, 8 Jun 2009 07:01:35 +0000 (UTC) (envelope-from gallasch@free.de) Received: from smtp.free.de (smtp.free.de [91.204.6.103]) by mx1.freebsd.org (Postfix) with ESMTP id 71B378FC16 for ; Mon, 8 Jun 2009 07:01:34 +0000 (UTC) (envelope-from gallasch@free.de) Received: (qmail 39442 invoked by uid 98); 8 Jun 2009 09:01:32 +0200 Received: from 91.204.4.103 by smtp.free.de (envelope-from , uid 82) with qmail-scanner-1.25 (clamdscan: 0.90.1/3618. Clear:RC:1(91.204.4.103):. Processed in 0.048655 secs); 08 Jun 2009 07:01:32 -0000 X-Qmail-Scanner-Mail-From: gallasch@free.de via smtp.free.de X-Qmail-Scanner: 1.25 (Clear:RC:1(91.204.4.103):. Processed in 0.048655 secs) Received: from smtp.free.de (HELO boiler.free.de) (gallasch@free.de@[91.204.4.103]) (envelope-sender ) by smtp.free.de (qmail-ldap-1.03) with AES128-SHA encrypted SMTP for ; 8 Jun 2009 09:01:32 +0200 Date: Mon, 8 Jun 2009 09:01:23 +0200 From: Kai Gallasch To: freebsd-fs@freebsd.org Message-ID: <20090608090123.13c21d5f@boiler.free.de> In-Reply-To: References: <4A2AA48B.20803@free.de> X-Mailer: Claws Mail 3.6.1 (GTK+ 2.16.1; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/qIJ7xaFaCLxoO1EqM_e7Cku"; protocol="application/pgp-signature" Subject: Re: ZFS v13 performance drops with low memory on FreeBSD-7 STABLE X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 Jun 2009 07:01:35 -0000 --Sig_/qIJ7xaFaCLxoO1EqM_e7Cku Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Mon, 08 Jun 2009 02:55:22 +0200 wrote Ivan Voras : > Kai Gallasch wrote: > > Hi. > >=20 > > So for me this looks like when running applications and ZFS compete > > for free RAM, ZFS looses. Is that so? >=20 > Yes, that was the point of recent work in stabilizing ZFS - without it > you would probably panic. With it, ZFS's memory is shrunk down. Unless > there are other factors (like swapping; are you swapping on ZFS?), > this is the probable reason for what you're seeing. No. Swapspace is on a standard swap partition outside the zpool. # swapinfo=20 Device 1K-blocks Used Avail Capacity /dev/da0s3b 8388608 11636 8376972 0% There's barely swapping taking place on the server. --Kai. --Sig_/qIJ7xaFaCLxoO1EqM_e7Cku Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkost0MACgkQFvpAnxJUoYa3IgCeKsp1NmUrf4wuWNy/F6/NBLvh p0EAn0X6GL+i3Q7BgjAfYCn5R2tpQBP1 =Y3Fi -----END PGP SIGNATURE----- --Sig_/qIJ7xaFaCLxoO1EqM_e7Cku--