Path: utzoo!mnetor!tmsoft!torsqnt!hybrid!scifi!bywater!uunet!shakti!shri
From: shri@ncst.ernet.in (H.Shrikumar)
Newsgroups: comp.benchmarks
Subject: Re: rhealstones benchmark
Summary: Is is alive ???
Message-ID: <1270@shakti.ncst.ernet.in>
Date: 30 Jan 91 13:57:41 GMT
References: <1404@gouldfr.UUCP>
Reply-To: shri@ncst.ernet.in (H.Shrikumar )
Organization: National Centre for Software Technology, Bombay, INDIA
Lines: 38

In article <1404@gouldfr.UUCP> mmira@gouldfr.UUCP (Michel Mirabella) writes:
>  I'm looking for the source code of a benchmark called rhealstones
>that give rhealstones rating based on a number real time metrics.

   Sometime back too, I had asked .. but no response. 

   Seems like even Dr. Dobbs, who proposed the benchmark, themselves
have forgotten all about it.
   
   Anybody know ? Anybody know any RealTime benchmarks ?

   Rhealstone had some nice concepts,..

  1. One number is not good enough, you must quote a bunch of numbers.
       'Cos all real time applications are not very similar.

  2. The family includes numbers for context switch time, IPCF rate,
     etc. and some other "regular" performance figures.

   I dont remember they proposed a specific way to "average" it into
one number, so they did not get into the "how to get one number from
several" debate. But they recommended using a weighted average, leaving
it to the individual benchmarker to come up with weights appropriate to
his requirements.

   In specifying for a family of numbers, by 1 above, I think they
predate SPEC.

   Talking of SPEC, could SPEC not include some Real Time Programs
too ? How about using a parallel make as a process spawn benchmark,
a ring of processes (such as the code that discoveres the ledge in the Sun.)
for context switch etc.

  Comments ?

-- shrikumar ( shri@ncst.in )