[Info-vax] Some VMS/x86 perf test data from WASD maintainer.

[Volker Halle]

Jan-Erik Söderholm schrieb am Donnerstag, 27. April 2023 um 11:24:46 UTC+2:

After now also running a VSI OpenVMS x86-64 E9.2-1 system (using VMware Workstation Player 16) and installing the C compiler, I have tried to 'calibrate' the procedure to obtain the VUPS values for x86-64 using the PRIME_SIEVE.C tool (calculating prime numbers up to  10^10). The CPU_MULTIPLIER value for x86_64 should be set to 8 - you can easily edit this procedure to add (at the right place):  $ IF F$GETSYI("ARCH_NAME").EQS."x86_64" THEN $ cpu_multiplier=8 

The resulting VUPS values for x86-64 are now more realistic:   5900 VUPS  on an i5-9600K CPU @3.7 GHz

On this OpenVMS x86_64 system, PRIME_SIEVE needs 19.34 sec to calculate primes up to 10^10. On an ES45 Model 2B (EV68CB 1250 MHz) system it took 49.04 seconds, that system was measured at 2414 VUPS.

See previous discussion in: https://groups.google.com/g/comp.os.vms/c/ouhZ7C7bgoQ/m/_iEqNzm1AwAJ

PRIME_SIEVE was obtained from http://wwwhomes.uni-bielefeld.de/achim/prime_sieve.html

Volker.