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From: guy@rlgvax.UUCP (Guy Harris)
Newsgroups: net.unix
Subject: Re: Re: IBM to support UNIX on 4300
Message-ID: <523@rlgvax.UUCP>
Date: Thu, 28-Feb-85 02:21:22 EST
Article-I.D.: rlgvax.523
Posted: Thu Feb 28 02:21:22 1985
Date-Received: Sat, 2-Mar-85 04:17:24 EST
References: <801@sdcsla.UUCP> <424@lsuc.UUCP> <990@watdcsu.UUCP> <170@cadtroy.UUCP> <1019@watdcsu.UUCP>
Organization: CCI Office Systems Group, Reston, VA
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> also, IX/370, is not an exact port of Sys VR2.  the blocksize used
> for I/O is 4K.  this means much better typical I/O performance
> when compared to 1K blocks.

Actually, AT&T's own S/3[67]0 S5R2 UNIX uses 4K blocks also (lots of S5 code
has #ifdefs for "ibm" or somesuch that set block sizes to 4K).

	Guy Harris
	{seismo,ihnp4,allegra}!rlgvax!guy