From owner-freebsd-hackers Sat Oct 10 08:13:06 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id IAA15545 for freebsd-hackers-outgoing; Sat, 10 Oct 1998 08:13:06 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from labinfo.iet.unipi.it (labinfo.iet.unipi.it [131.114.9.5]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id IAA15540 for ; Sat, 10 Oct 1998 08:13:04 -0700 (PDT) (envelope-from luigi@labinfo.iet.unipi.it) Received: from localhost (luigi@localhost) by labinfo.iet.unipi.it (8.6.5/8.6.5) id OAA16631; Sat, 10 Oct 1998 14:13:14 +0100 From: Luigi Rizzo Message-Id: <199810101313.OAA16631@labinfo.iet.unipi.it> Subject: how fast are "fast" CDROM drives ? To: hackers@FreeBSD.ORG Date: Sat, 10 Oct 1998 14:13:13 +0100 (MET) X-Mailer: ELM [version 2.4 PL23] Content-Type: text Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Well it seems that everybody here is crazy to upgrade their CDROM drives to the fastest unit they can get, but i wonder if it makes any sense... I got a 32x ATAPI unit one month ago and there is no way (under -stable) i can get more than 2.2MB/s by dd'ing from the disk. Considering i get 5-6MB/s from a raw IDE disk (and from iozone with large files) on the same machine, i don't think the limiting factor is CPU or the OS. I wonder if anybody is able to exploit the speed of their 24/32/40x IDE or SCSI drives cheers luigi To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message