Path: utzoo!attcan!uunet!cs.utexas.edu!romp!auschs!awdprime!anderson!john
From: john@anderson.uucp (John A. McClenny)
Newsgroups: comp.arch
Subject: Re: Motorola Delta mips-ratings versus new MPC mips-ratings
Keywords: curious
Message-ID: <1843@awdprime.UUCP>
Date: 20 Mar 90 16:19:10 GMT
References: <37103@mips.mips.COM< <7550@pdn.paradyne.com>
Sender: news@awdprime.UUCP
Reply-To: john@reed.UUCP (John A. McClenny)
Organization: IBM AWD, Austin, TX
Lines: 31

In article <37103@mips.mips.COM< mash@mips.COM (John Mashey) writes:
<I noticed in the recent announcements that the 20Mhz MPC-100 is rated at
<27 mips, and the 25MHz MPC-200 rated at 33.8 mips.
<I thought that the Delta 8864SP (88K with 128K cache @ 20Mhz) was rated
<at 17 mips, and the 25Mhz version at 21 mips., and I thought the MPC
<systems used the same boards.
<
<1) On the surface, it seems surprising that these machines just jumped
<a factor of 1.6X in performance....
<
<2) Could anybody that knows say:
<	b) Did the compilers get a bunch better?
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

My Moto sources say that the compilers got much better.  The rumor is
that the compiler group in MPG (MicroProcessor Group) turned their 
C compiler into a real product.  The 68xxx version of their compiler was
substantially 'better' than the commercially available compilers.
This group has some pretty hot compiler jocks.  Moto also is said
to have acquired a hot Fortran compiler.   I guess that the proof in
the above will be if the Specmarks change.




John  McClenny (512/838-4822)
@cs.utexas.edu:ibmchs!auschs!anderson.austin.ibm.com!john
VNET: sc13329@ausvm6 (T/L 678-4822)

Disclaimer : All opinions are my own and do not necessarily reflect the
	opinions of IBM.