I have found in the past that dividing the REXX CPS number by 1800 gives an
approximation(!) of the general MIPS rating.
Those of you with access to various systems might want to see if this comes
anywhere to close for your system. This would make the system below
(2622295 CPS) about 1456 MIPS.
Just remember that REXXCPS is a single thread; it can only test a single
processor/core. If you have a multi-processor system you have to multiple
by the number of processors and "adjust" for N-way "interference".
Mike Hammock
--------------------------------------------------
From: "Bruce Hayden" <bjhay...@gmail.com>
Sent: Friday, June 10, 2011 10:12 AM
To: <IBMVM@LISTSERV.UARK.EDU>
Subject: Re: REXXCPS EXEC
I ran it on a 2817-742 (i.e. a z196):
rexxcps
----- REXXCPS 2.1 -- Measuring REXX clauses/second -----
REXX version is: REXX370 4.02 01 Dec 1998
System is: CMS
Averaging: 100 measures of 100 iterations
Calibration (empty DO): 0.00001351 secs (average of 100)
Spooling trace NOTERM
Spooling now back on TERM
Total (full DO): 0.03813453 secs (average of 100 measures of 100
iterations)
Time for one iteration (1000 clauses) was: 0.0003813453 seconds
Performance: 2622295 REXX clauses per second
Ready; T=3.76/3.76 10:06:06
But - you're probably more interested in the numbers after compiling
the exec. (I noticed in the table that it also has the results after
the exec is compiled.)
rexxcpsc
----- REXXCPS 2.1 -- Measuring REXX clauses/second -----
REXX version is: REXXC370 4.02 23 Dec 1999
System is: CMS
Averaging: 100 measures of 100 iterations
Calibration (empty DO): 0.00000467 secs (average of 100)
Spooling trace NOTERM
Spooling now back on TERM
Total (full DO): 0.00707880 secs (average of 100 measures of 100
iterations)
Time for one iteration (1000 clauses) was: 0.000070788 seconds
Performance: 14126688 REXX clauses per second
Ready; T=0.69/0.69 10:06:10
On Fri, Jun 10, 2011 at 6:18 AM, Les Koehler <vmr...@tampabay.rr.com>
wrote:
I'm curious... Has anyone with real mainframe hardware (no emulation)
recently run REXXCPS that MFC wrote way back when?
See:
http://speleotrove.com/misc/rexxcpslist.html
for his collection of data.
If you've never seen REXXCPS, there's a link to it at the top of the
page.
Just remove the hash-bang usr/bin to run it on a VM userid.
Les
--
Bruce Hayden
z/VM and Linux on System z ATS
IBM, Endicott, NY
