Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!uunet!dg-rtp!dg!cheshirecat!lewine From: lewine@cheshirecat.webo.dg.com (Donald Lewine) Newsgroups: comp.benchmarks Subject: Re: benchmarks (SPECmarks) Message-ID: <1146@dg.dg.com> Date: 14 Nov 90 18:39:49 GMT References: <7581@eos.arc.nasa.gov> Sender: root@dg.dg.com Reply-To: uunet!dg!lewine Distribution: comp Organization: Data General Corporation Lines: 27 In article <7581@eos.arc.nasa.gov>, eugene@eos.arc.nasa.gov (Eugene Miya) writes: |> |> This is why SPEC's decision to normalize performance on the DEC VAX-11/780 |> or say the IBM PC, simply because they are or were common is bad. |> This is akin to to taking the wind up clock I used to wake up as a youngster |> and designating it as a time standard. If you think this analogy is |> bogus, consider taking a common ruler, 12 inches or a meter stick, |> designating that as THE Meter or THE Foot, those wooden things, |> then try to make sub-micron lines for your memories or CPUs. But SPEC took a particular VAX-11/780. The 11/780 time for gcc is 1482 seconds. It is not what you get on your particular VAX. This is more like taking a gold bar in Paris and saying that is the standard meter. As look as there is only one gold bar, that is not a problem. I think that 29 SPECmarks is more understandable than saying that the Geometric Mean of the benchmark times is 133.3 seconds. -------------------------------------------------------------------- Donald A. Lewine (508) 870-9008 Voice Data General Corporation (508) 366-0750 FAX 4400 Computer Drive. MS D112A Westboro, MA 01580 U.S.A. uucp: uunet!dg!lewine Internet: lewine@cheshirecat.webo.dg.com