From owner-freebsd-current Fri May 23 05:22:50 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id FAA17003 for current-outgoing; Fri, 23 May 1997 05:22:50 -0700 (PDT) Received: from sos.freebsd.dk (sos.freebsd.dk [195.8.129.33]) by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id FAA16981 for ; Fri, 23 May 1997 05:22:45 -0700 (PDT) Received: (from sos@localhost) by sos.freebsd.dk (8.8.5/8.7.3) id OAA01929 for current@freebsd.org; Fri, 23 May 1997 14:23:16 +0200 (MEST) From: Søren Schmidt Message-Id: <199705231223.OAA01929@sos.freebsd.dk> Subject: cd9660 filesystem slowed down ??? To: current@freebsd.org (FreeBSD current) Date: Fri, 23 May 1997 14:23:16 +0200 (MEST) X-Mailer: ELM [version 2.4ME+ PL30 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-current@freebsd.org X-Loop: FreeBSD.org Precedence: bulk I have this strange observation under 3.0-current: dd if=/dev/wcd0c of=/dev/null gives about 2MB/sec Mount the CD and then dd if=somefile of=/dev/null gives about 70K/sec Doing the same on 2.2.2 gives 2MB/sec / 1800K/sec... What have we done to degrade cd9660 performance that much ???? (to make things worse the -current machine is a 233Mhz P6 and the 2.2.2 one is a 100Mhz 486, same IDE cdrom on both) -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Søren Schmidt (sos@FreeBSD.org) FreeBSD Core Team Even more code to hack -- will it ever end ..