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   DESIGNS          IBM COMPATIBLE PERFORMANCE ANALYZER          (C)  1986 
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                      Copyright (C) 1986 Richard B. Johnson

  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:

        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.

