Date: Tue, 12 Sep 1995 05:54:35 +0200 (MET DST) From: J Wunsch <j@uriah.heep.sax.de> To: hackers@freebsd.org Subject: Re: higher density diskettes Message-ID: <199509120354.FAA27598@uriah.heep.sax.de> In-Reply-To: <199509121259.MAA16918@thumper.osix.com.au> from "Peter May" at Sep 12, 95 01:12:46 pm
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As Peter May wrote: > That should speed the performance of this already flaky driver up no > end! :-) Badly designed: yes. But flakey? How? Why? We've got one of the fastest floppy disk drivers. :-) It's even about 10 % faster than Linux (for sequential reads), i've heard that old Xenix' are as fast, and it's way faster than all commercial Unices i've seen. (For sequential reads, and i consider them the most typical _unix_ usage [tar floppy], we get 30 KB/s, that's 2/3 of the raw data rate, and basically proves that we don't use revolutions.) Of course, all this assumes that you're issuing larger requests than single-sector, otherwise the o/s overhead may come into your way and make you lose revolutions. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ Never trust an operating system you don't have sources for. ;-)
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