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- From: jackson@pravda.enet.dec.com ()
- Subject: Re: Alpha benchmarks
- Message-ID: <1992Aug14.191129.12516@engage.pko.dec.com>
- Keywords: alpha, benchmarks
- Sender: newsdaemon@engage.pko.dec.com (USENET News Daemon)
- Reply-To: jackson@pravda.enet.dec.com ()
- Organization: Digital Equipment Corporation
- References: <1992Aug12.160844.2486@nosc.mil> <1992Aug13.093121.4012@rdg.dec.com> <1992Aug13.115706.5652@cl.cam.ac.uk>
- Date: Fri, 14 Aug 1992 19:11:29 GMT
- Lines: 57
-
-
- In article <1992Aug12.160844.2486@nosc.mil>, lem@nosc.mil (Lemuel L. Davis) writes:
-
-
- >>Has anyone run or had DEC run any becnhmarks on Alpha systems? I
- >>have just seen some..... etc, etc.
-
-
- Before I start, let me say that those who have been given access to Alpha
- systems (both VMS and OSF/1) in the porting centers and as field test sites
- have signed agreements regarding releasing performance information. The
- reason that we have those agreements in place is that those who have access
- to the systems are told what they can expect from today's systems as well
- as what they can expect in the future. When information is passed on, those
- who receive it may not know the condition of the machines, and thus may get
- the wrong impression (like you have)
-
-
- There are four things that are all in various states on various machines
- around the world at porting centers. All have serious performance implications
- at this point. These are:
-
- Hardware: Many of the early systems had slower clocks and slower
- I/O systems due to early prototype chips being used. This
- will of course slow the systems down
-
- OS Software: Both VMS and OSF/1 are early releases of the OS, and thus
- still have many debugging features "turned on" in the OS.
- Along with that, some of the OS code has been compiled with
- compilers that are not final, optomizing versions that generate
- less than optimal code.
-
- Compilers: Once the OS is built, the application has to use those same
- compilers to generate the application code. These again are
- less than optimal at this point.
-
- PALcode: The low level "microcode" for some of the Priv'd OS internals
- has yet to be fully optimized. This will also have an
- impact if many priv'd OS calls are made.
-
-
- Given these, it isn't surprising that any benchmark run today will perform
- less than expected. This is why one has to sign an agreement saying that they
- will not publish or distribute any results one may get.
-
- I realize that the interest in Alpha performance is great, and there is a
- desire to "scoop" what Digital will announce in Alpha products. Hang in
- there, Alpha is coming and it *IS* fast!
-
- William Jackson
- Alpha Workstation Marketing Manager
- Digital Equipment Corporation
- 146 Main Street
- Maynard, MA 01754
-
-
-
-