From owner-freebsd-current Wed Sep 11 20:16:44 2002 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 ED95E37B400 for ; Wed, 11 Sep 2002 20:16:41 -0700 (PDT) Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101]) by mx1.FreeBSD.org (Postfix) with ESMTP id 59A8143E42 for ; Wed, 11 Sep 2002 20:16:41 -0700 (PDT) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.12.6/8.12.5) id g8C3GegR062039 for current@FreeBSD.ORG; Wed, 11 Sep 2002 22:16:40 -0500 (CDT) (envelope-from dan) Date: Wed, 11 Sep 2002 22:16:40 -0500 From: Dan Nelson To: current@FreeBSD.ORG Subject: Re: Any problems with increaseing the dump(8) block size? Message-ID: <20020912031640.GC13261@dan.emsphone.com> References: <20020911170749.GA27252@dragon.nuxi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20020911170749.GA27252@dragon.nuxi.com> X-OS: FreeBSD 5.0-CURRENT X-message-flag: Outlook Error User-Agent: Mutt/1.5.1i Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In the last episode (Sep 11), David O'Brien said: > I'd like to make this commit to get better performance on today's > streaming tape drives. It seems my DLT drive doesn't stream well > with the default block size of '10'. Only if we also raise dd's and tar's default blocksizes to 64k as well :) How about raising BUFSIZE (no smiley)? Tru64 and Linux both have an 8k stdio buffer. -- Dan Nelson dnelson@allantgroup.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message