From owner-freebsd-current@FreeBSD.ORG Thu Mar 17 02:03:12 2005 Return-Path: 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 1C6A416A4CE for ; Thu, 17 Mar 2005 02:03:12 +0000 (GMT) Received: from mail.gmx.net (pop.gmx.de [213.165.64.20]) by mx1.FreeBSD.org (Postfix) with SMTP id C9C6E43D1D for ; Thu, 17 Mar 2005 02:03:10 +0000 (GMT) (envelope-from emanuel.strobl@gmx.net) Received: (qmail invoked by alias); 17 Mar 2005 02:03:09 -0000 Received: from flb.schmalzbauer.de (EHLO cale.flintsbach.schmalzbauer.de) (62.245.232.135) by mail.gmx.net (mp003) with SMTP; 17 Mar 2005 03:03:09 +0100 X-Authenticated: #301138 From: Emanuel Strobl To: freebsd-current@freebsd.org Date: Thu, 17 Mar 2005 03:03:05 +0100 User-Agent: KMail/1.7.2 References: <87is46kzk1.fsf@neva.vlink.ru> <200503170222.07169@harrymail> <20050316202334.W20708@mail.chesapeake.net> In-Reply-To: <20050316202334.W20708@mail.chesapeake.net> X-Birthday: 10/06/72 X-CelPhone: +49 173 9967781 X-Tel: +49 89 18947781 X-Country: Germany X-Address: Munich, 80686 X-OS: FreeBSD MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart92589670.D0XGC4SkiY"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200503170303.12403@harrymail> X-Y-GMX-Trusted: 0 cc: Jeff Roberson cc: Sergey Matveychuk cc: Mathieu Arnold cc: Peter Edwards cc: Denis Shaposhnikov Subject: md (file backed) performance [Was: Re: unionfs 5.4] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 17 Mar 2005 02:03:12 -0000 --nextPart92589670.D0XGC4SkiY Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Am Donnerstag, 17. M=E4rz 2005 02:24 schrieb Jeff Roberson: > On Thu, 17 Mar 2005, Emanuel Strobl wrote: > > Am Mittwoch, 16. M=E4rz 2005 07:16 schrieb Sergey Matveychuk: > > > Jeff Roberson wrote: > > > >>just ffs: 1:47 min > > > >>nullfs: 1:43 min (oops!:) > > > >>nullfs in jail: 12:12 min > > > >> > > > >>Almost ten times degradation. > > > > > > > > Can you try this again on current? I just committed some changes to > > > > nullfs which vastly simplify the locking. I don't see anything > > > > inherent in the code that should cause such a slowdown. > > > > > > The problem has gone. Thanks Jeff! > > > Don't forget MFC it some time :) > > > > Highly appreciated for 5.4!!! > > I can't MFC this for 5.4, it requires too much of the new vfs architecture > to properly function. I'll mail re@ to see what their opinion is for 5.5. Oic. I haven't tracked -current since christmas so I'd like to ask if you k= now=20 anything new about file backed md performance. I wanted to use that for jail systems but performance was really bad. Does your great work also improve md behaviour? Thank you very much, =2DHarry --nextPart92589670.D0XGC4SkiY Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQBCOOVgBylq0S4AzzwRAjX9AJ0bork9qBcoPZ4q9hTCEvT5zM/Y5ACfQiSm N2DVnmICRqby5ql/KNU7GmU= =lz6Q -----END PGP SIGNATURE----- --nextPart92589670.D0XGC4SkiY--