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- 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:
-
- ╔══════════╦═════════════════════════════════════════════════════╦═══════════╗
- ║ µDESIGNS ║ 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) 283-3505 data
- (415) 283-2809 voice
-