Date: 21 Mar 2001 15:43:51 +0100 From: Eric Jacoboni <jaco@teaser.fr> To: multimedia@FreeBSD.ORG Subject: Re: burncd and ISO copies Message-ID: <86y9tz2ndk.fsf@titine.fr.eu.org> In-Reply-To: <200103211206.f2LC63911963@dungeon.home> (Stephen McKay's message of "Wed, 21 Mar 2001 22:06:03 %2B1000") References: <86lmq09not.fsf@titine.fr.eu.org> <200103202100.WAA29441@freebsd.dk> <200103211206.f2LC63911963@dungeon.home>
next in thread | previous in thread | raw e-mail | index | archive | help
>>>>> "Stephen" == Stephen McKay <mckay@thehub.com.au> writes: Stephen> Really? I always use 2k with CDs because I lose data at the Stephen> end of the CD with anything bigger. Some problem with Stephen> detecting the end of the CD it seems. I've no such problem with my CD and CDRW drives (both ATA), the speed increases with the block size, that's all: The CD: $ dd if=/dev/racd0c bs=2k of=/dev/null 325277+0 records in 325277+0 records out 666167296 bytes transferred in 152.378786 secs (4371785 bytes/sec) $ dd if=/dev/racd0c bs=4k of=/dev/null 162638+1 records in 162638+1 records out 666167296 bytes transferred in 129.569401 secs (5141394 bytes/sec) $ dd if=/dev/racd0c bs=8k of=/dev/null 81319+1 records in 81319+1 records out 666167296 bytes transferred in 129.322487 secs (5151210 bytes/sec) It seems block sizes bigger than 8k give slower transferts... -- Éric Jacoboni, né il y a 1288545673 secondes. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?86y9tz2ndk.fsf>