From owner-freebsd-stable Tue Jun 12 17:51: 8 2001 Delivered-To: freebsd-stable@freebsd.org Received: from wantadilla.lemis.com (wantadilla.lemis.com [192.109.197.80]) by hub.freebsd.org (Postfix) with ESMTP id 62FB337B403 for ; Tue, 12 Jun 2001 17:51:00 -0700 (PDT) (envelope-from grog@lemis.com) Received: by wantadilla.lemis.com (Postfix, from userid 1004) id 705036ACC1; Wed, 13 Jun 2001 10:20:58 +0930 (CST) Date: Wed, 13 Jun 2001 10:20:58 +0930 From: Greg Lehey To: Josef Karthauser Cc: Eric Parusel , freebsd-stable@freebsd.org Subject: XFS (was: The FreeBSD core team needs your help) Message-ID: <20010613102058.F5486@wantadilla.lemis.com> References: <20010608134705.19635.qmail@web14701.mail.yahoo.com> <004001c0f030$36a0d3e0$0600020a@frontend> <20010612120958.G10614@tao.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20010612120958.G10614@tao.org.uk>; from joe@tao.org.uk on Tue, Jun 12, 2001 at 12:09:58PM +0100 Organization: The FreeBSD Project Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.FreeBSD.org/ X-PGP-Fingerprint: 6B 7B C3 8C 61 CD 54 AF 13 24 52 F8 6D A4 95 EF Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Tuesday, 12 June 2001 at 12:09:58 +0100, Josef Karthauser wrote: > On Fri, Jun 08, 2001 at 08:32:23AM -0700, Eric Parusel wrote: >>>> A journalling FS for those people who just hate waiting for a >> couple >>>> of >>>> TB of slow disks to fsck? >>> >>> Does ReiserFS work with FreeBSD? >> >>> From what I've read, XFS is quite good as well.... (Whether or not it >> could ever work with *BSD, I don't know) > > Apparently XFS would run better on FreeBSD than on Linux, from what > Adrian told me. This is because linux apparently channels all I/O > through 512k buffers They're not that big. IIRC 4 kB is the maximum in 2.2 and earlier kernels. They've improved things somewhat in 2.4, but it's still a mess. > whereas XFS uses larger buffers to get it's speed. FreeBSD's buffer > cache doesn't have the same limitations that Linux's does. Correct. We do limit physical I/O to 128 kB, however. That would have to be rethought to do correctly some of the things that XFS does. Greg -- See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message