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From: ix742@sdcc6.UUCP (James Hayes)
Newsgroups: net.micro,net.micro.pc
Subject: Re: Increasing the speed of IBM-XT.
Message-ID: <2651@sdcc6.UUCP>
Date: Sat, 31-May-86 16:27:24 EDT
Article-I.D.: sdcc6.2651
Posted: Sat May 31 16:27:24 1986
Date-Received: Tue, 3-Jun-86 22:19:46 EDT
References: <597@ittvax.ATC.ITT.UUCP>
Reply-To: ix742@sdcc6.UUCP (James Hayes)
Distribution: net
Organization: UC San Diego EE/CS Department.
Lines: 32
Xref: linus net.micro:13378 net.micro.pc:8087

jeffd@ittvax.ATC.ITT.UUCP (Jeff Denenberg) writes:
>     My experience with the V20 has also been good. Its improvement is better
>than a benchmark of 5 to 10% would indicate. Many critical (but usually
>unmeasured) operations are sped up by a factor of two. These include:
>
>     a memory test done at system cold boot time,
>
>     my THESYS FASTCARD IV (2Mbit expanded ram, ramdisk, disk cache,
>        printer buffer)
>and 
>     interactive screen operations (an important human factors issue).
>
>     The only problem I saw was a hardware test done at boot time on my clone
>(an ITT Xtra). It is speed sensitive, fails intermittently, and requires
>a patch. All things considered, I suggest all 8088 or 8086 based pc clones
>would benefit from this upgrade.

When we upgraded our PC to a V20 at work, the Norton Utility "si"
command gave the system a 1.8 rating. (=Speed of Compaq Deskpro.)
The performance improvement in Microsoft Flight Sim and Microsoft
Word was great. (~2 times faster)

We tried the V30 in a system we are developing and the performance
improvement was significant.

It is also interesting to note, that the V30 also contains an
8080 emulation mode.

-Jim Hayes, UCSD
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