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Path: utzoo!mnetor!seismo!mimsy!chris
From: chris@mimsy.UUCP (Chris Torek)
Newsgroups: comp.unix.wizards,comp.unix.questions
Subject: Re: memory increased, performance decreased
Message-ID: <5876@mimsy.UUCP>
Date: Wed, 18-Mar-87 22:03:56 EST
Article-I.D.: mimsy.5876
Posted: Wed Mar 18 22:03:56 1987
Date-Received: Fri, 20-Mar-87 03:45:13 EST
References: <626@terak.UUCP>
Organization: U of Maryland, Dept. of Computer Science, Coll. Pk., MD 20742
Lines: 16
Xref: mnetor comp.unix.wizards:1516 comp.unix.questions:1501

In article <626@terak.UUCP> nawaf@terak.UUCP (Nawaf K. Bitar) writes:
>... We recently upped our memory from 2M to 16M, but performance-wise
>we appear to have suffered.  In addition the system can only see 8M
>of the 16 reporting:
> 	nexus type 74 unsupported (at tr 1)
>... Are there any parameters that need to be tuned?

The tuning has been done already in 4.3BSD, which will also see
all 16M, and which has support for nexus type 0x74, which is a 256K
chip interleaved memory controller.  Note that the kernel does not
need to speak to the memory controller for the machine to run.
The `unsupported' message means only that any single bit ECC errors
will go unreported.
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7690)
UUCP:	seismo!mimsy!chris	ARPA/CSNet:	chris@mimsy.umd.edu