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From: dpm@cs.cmu.edu (David Maynard)
Newsgroups: comp.arch
Subject: Re: Simple disk benchmark results
Message-ID: <oYcZALy00jctMIMY4E@cs.cmu.edu>
Date: 23 Jun 89 15:11:19 GMT
References: <9468@b-tech.ann-arbor.mi.us>,
	<LIMES.89Jun22162921@ouroborous.wseng.sun.com>
Organization: Carnegie Mellon, Pittsburgh, PA
Lines: 28
In-Reply-To: <LIMES.89Jun22162921@ouroborous.wseng.sun.com>

limes@sun.com (Greg Limes) writes:
>....
>    Sun      SunOS                 "        4.2       550
>    Spark/1
>.... 
>    DEC      Ultrix                SCSI               150
>    3100
> 
> 
> Gee, any reason you put the Dec3100 down below the Sun stuff? I guess
> that the async SCSI hits their performance pretty bad. Does it support
> Sync SCSI at all? (I would not mind seeing performance info on this)

I recently (this week) read that Digital had introduced a new version
of Ultrix for both VAX-based and MIPS-based machines.  One of the
improvements is supposedly "greatly" improved disk & I/O performance.
Does anyone have experience with the new version to know if there has
been a real improvement? 

-David

 ---
 David P. Maynard (dpm@cs.cmu.edu, dpm@maxwell.ece.cmu.edu)
 Dept. of Electrical and Computer Engineering
 Carnegie Mellon University,  Pittsburgh, PA  15213
 ---
 As usual, these are my rambling thoughts, not CMU's opinion.
 ---