3 Jan
2013
3 Jan
'13
9:48 p.m.
On 03/01/13 11:55 PM, David Griffith wrote:
On Thu, 3 Jan 2013, Jonathan Katz wrote:
Quite possibly. Timings over short intervals will give poor results.
What is needed is a better benchmark :)
--Toby
On Jan 3, 2013, at 10:05 PM, Jonathan Katz
<jon at jonworld.com> wrote:
Just for grins I compiled and ran this on a Thinkpad T42 and I got this:
$ ./drynr ; ./dryr
Dhrystone(1.1) time for 500000000 passes = 85
This machine benchmarks at 5882352 dhrystones/second
Dhrystone(1.1) time for 500000000 passes = 90
This machine benchmarks at 5555555 dhrystones/second
Did I top out the limits of Dhrystone?
What ever happened to the or iginal Dhrystone
tests? Since those were
designed for VAXen (era) systems, running them on a modern emulator
may give some apples to apples comparisons between the real big iron and
I found the following C version of Dhrystone 1.1 at the following URL:
http://classes.soe.ucsc.edu/cmpe202/benchmarks/standard/dhrystone.c
I have simh-780 running BSD 4.3 found via these instructions:
http://gunkies.org/wiki/Installing_4.3_BSD_on_SIMH