Date: Sun, 12 Sep 1999 11:46:08 +0930 From: Greg Lehey <grog@lemis.com> To: Volker Stolz <stolz@Pool.Informatik.RWTH-Aachen.DE> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Erratic SCSI-ZIP throughput Message-ID: <19990912114608.U10106@freebie.lemis.com> In-Reply-To: <19990909123919.A6053@solo.informatik.rwth-aachen.de>; from Volker Stolz on Thu, Sep 09, 1999 at 12:39:19PM %2B0200 References: <19990909123919.A6053@solo.informatik.rwth-aachen.de>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thursday, 9 September 1999 at 12:39:19 +0200, Volker Stolz wrote: > I always wondered why my ZIP is sooo slow (under FreeBSD, Win98 flies!), so I measured it > using "ftp localhost" with a mounted ZIP and msdos-FS. > Few files (all of about 5MB, give or take a few bytes) were transfered with ca. 1.8M/s, > while most just made it to 80K/s and sometimes even below. > I'm using the ncr810, everything is properly terminated. The problem occured under 2.2.x, too. > > Could someone please give me a clue to what's happening? There's a certain amount of overhead involved in copying a file, and I suspect that what you're seeing is related, especially if the big files are moving fast. What does iostat show? I don't know the specs, but I'd expect about 30 to 50 transfers a second for a Zip drive. Greg -- When replying to this message, please copy the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address, home page and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19990912114608.U10106>