Dec 142017
 
Checks speed of computer, quite good.
File SPEED4.ZIP from The Programmer’s Corner in
Category System Diagnostics
Checks speed of computer, quite good.
File Name File Size Zip Size Zip Type
SPEED.COM 1664 936 deflated
SPEED.DOC 2688 1191 deflated

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Contents of the SPEED.DOC file


Documentation for SPEED.COM

This program compares the microprocessor and memory operations in your
computer with the "standard" IBM/PC. Peter Norton's Norton Utilities has
a routine called SI (SYSINFO.COM) that attempts to measure the performance
of a compatible against an IBM/PC. This program expands upon that idea and
gives a more complete showing of what the actual performance of a machine
may be in "real world" applications.

For a fair check, you should boot from the DOS disk so that no extra device
drivers are installed (that use interrupts and slow things down). With the
standard IBM/PC, each of the operations indicated will show 100% (or nearly
so). Any slight difference is due to asynchronism between the programs
operation and the system clock.

The response from my "turbo-XT" looks like this:


DESIGNS IBM COMPATIBLE PERFORMANCE ANALYZER (C) 1986

Copyright (C) 1986 Richard B. Johnson


Checking memory block write ticks: 129 compared to IBM/PC 391%
Checking register to memory ticks: 262 compared to IBM/PC 187%
Checking memory to register ticks: 279 compared to IBM/PC 175%
Checking register to register ticks: 326 compared to IBM/PC 169%
Checking divide by register ticks: 102 compared to IBM/PC 501%
Checking divide by memory ticks: 169 compared to IBM/PC 357%
Checking multiply by register ticks: 115 compared to IBM/PC 418%
Checking multiply by memory ticks: 143 compared to IBM/PC 389%
Checking stack operations ticks: 248 compared to IBM/PC 179%
Checking far jumps, far calls ticks: 309 compared to IBM/PC 167%

Total time is: 2082 clock ticks, (115 seconds) compared to IBM/PC 247%

This means that my system is 247 percent faster than an IBM/PC. Note that
memory operations (stack, register to memory, etc.) are not quite as fast
as register only operations. This shows that the probable bottle-neck in
my system is memory access. This "turbo" system runs a V-20 at 8MHz.

If you take this program to computer swap-meets, you can compare the speed of
various "clones" before you purchase or update your system. It can even help
you negotiate for a better price if the speed is not quite as fast as
the saleman says!

Cheers,

Dick Johnson
SYSTOP
Program Exchange
3603 Chestnut Street Apt. C
Lafayette, CA. 94549
(415) 283-3505data
(415) 283-2809 voice

YSTOP
Program Exchange
3603 Chestnut Street Apt


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