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Path: utzoo!watmath!clyde!cbatt!ncr-sd!stubbs
From: stubbs@ncr-sd.UUCP
Newsgroups: comp.arch
Subject: Re: 01/31/87 Dhrystone Results and Source
Message-ID: <1377@ncr-sd.SanDiego.NCR.COM>
Date: Wed, 18-Feb-87 16:43:41 EST
Article-I.D.: ncr-sd.1377
Posted: Wed Feb 18 16:43:41 1987
Date-Received: Thu, 19-Feb-87 20:47:13 EST
Reply-To: stubbs@ncr-sd.UUCP (0000-Jan Stubbs)
Organization: NCR Corporation, Rancho Bernardo
Lines: 16
Keywords: Benchmark, performance measurement

Another "problem" with Dhrystone which is also present in Dhampstone
is that since they are single file programs they are subject to
certain optimizations possible for machines with large numbers
of registers such as allocating blocks of registers to procedures,
and a different block of registers to the procedure it calls.

The Stanford MIPS guys are looking at this. But this technique
doesn't work too well on large real programs which either recurse
or are multiple program files compiled separately and then
linked together.

Jan Stubbs    ....sdcsvax!ncr-sd!stubbs
619 485-3052
NCR Corporation
16550 W. Bernardo Drive MS4010
San Diego, CA. 92127