Path: utzoo!attcan!uunet!mcvax!hp4nl!ctisbv!pim
From: pim@ctisbv.UUCP (Pim Zandbergen)
Newsgroups: comp.unix.microport
Subject: Re: Efficient tape I/O with 386/ix; How??
Keywords: streaming tape interactive slow
Message-ID: <609@ctisbv.UUCP>
Date: 11 Dec 88 13:50:55 GMT
References: <317@focsys.UUCP>
Reply-To: pim@ctisbv.UUCP (Pim Zandbergen)
Organization: CTI Software BV, The Hague, The Netherlands
Lines: 21

In article <317@focsys.UUCP> larry@focsys.UUCP (Larry Williamson) writes:
>Streaming tape I/O with 386/ix seems to be rather slow.  
>
>The command I've used is
>	find . -print | cpio -ovc >/dev/rmt0
>
A better command would be:

	find . -print | cpio -ovcBO /dev/rmt0
This tells cpio to use 5120 byte blocks.

You can also use dd(1) to have arbitrary blocksizes, like in:

	find . -print | cpio -ovc | dd of=/dev/rmt0 obs=20k

Try some different blocksizes for optimum results.
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