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From: csgr@cs.ru.ac.za (Geoff Rehmet)
Newsgroups: comp.os.386bsd.bugs
Subject: Re: More info on dhrystone benchmark...
Date: 27 Jul 1994 16:53:29 GMT
Organization: Rhodes University Computing Services
Lines: 32
Message-ID: <3163e9$3vt@quagga.ru.ac.za>
References: <MARK.1057.2E352DF5@novell.business.uwo.ca>
Reply-To: csgr@cs.ru.ac.za
NNTP-Posting-Host: braae.ru.ac.za
X-Newsreader: NN version 6.5.0 #4 (NOV)
In <MARK.1057.2E352DF5@novell.business.uwo.ca> MARK@novell.business.uwo.ca (Mark_Bramwell) writes:
>I recompiled and no change. I still get the smaller number.
>The version is dhrystone 2.1
>The tarfile on ashley.business.uwo.ca also has bonnie (measures disk speed)
You need to do more than hust recompile. You need to make sure that HZ
is defined to be the correct value. FreeBSD 1.1.5.1 has CLK_TCK at 128,
not 60, which is what dhrystone.c has it defined as.
best is to add
#define HZ CLK_TCK
BTW: on a 486DX33 (running 1.1.5):
Braae:/home/g89r4222/tmp%/usr/bin/time ./dhrystone
Dhrystone time for 500000 passes = 12
This machine benchmarks at 39506 dhrystones/second
13.35 real 12.96 user 0.07 sys
Braae:/home/g89r4222/tmp%/usr/bin/time ./dhrystone
Dhrystone time for 500000 passes = 12
This machine benchmarks at 39457 dhrystones/second
13.31 real 12.97 user 0.06 sys
Geoff.
--
Geoff Rehmet, Computer Science Department, | ____ _ o /\
Rhodes University, South Africa |___ _-\_<, / /\/\
FreeBSD core team | (*)/'(*) /\/ / \ \
csgr@cs.ru.ac.za, csgr@freefall.cdrom.com, geoff@neptune.ru.ac.za