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 Benchmarks for Quintus Prolog

# Performance Summary and Benchmarks

The Quintus Prolog compiler produces portable, optimized virtual machine (WAM) code. The table below shows performance for some platforms on the naive reverse benchmark (list of 30 elements, repeated 10000 times). The figures are in "Lips" (Logical Inferences Per Second), Quintus Prolog 3.4. The source code is in `demo(nrev)`.

## Bytecode Lips (Naive Reverse)

The figures are sorted on Lips, descending values.

 Platform OS MLips Pentium III 450 MHz Windows NT 4.0 12.4 Sun UltraSPARC 248 MHz SunOS 5.7 10.1 IBM RS6000 200 MHz AIX 4.3 9.4 HP 9000/780 180 MHz HP-UX 10.20 7.7 MIPS R4400 250 MHz IRIX 5.5 AlphaStation 400 4/233 Digital UNIX V4.0 3.1

## Other Benchmarks

Here are some numbers for benchmarks used in the Mercury project. This list contains links to the sources of the benchmarks:
• crypt solves a cryptoarithmetic puzzle.
• deriv symbolically differentiates four functions of a single variable.
• poly symbolically raises 1+x+y+z to the tenth power.
• prime finds all primes up to 100.
• qsort quicksorts a list of 50 integers using difference lists.
• queens finds all safe placements of 9 queens on a 9x9 chessboard.
• query finds countries with approximately equal population density.
• tak is an artificial benchmark, originally written in Lisp; it is heavily recursive and does lots of simple integer arithmetic.
The benchmarks use the following test harness:

## Results

The benchmark results in Quintus Prolog 3.4, in milliseconds per iteration, are as follows:

 Platform CPUspeed(MHz) Operating System crypt deriv poly primes qsort queens query tak Pentium III 450 Windows NT 4 3.74 0.041 14.2 0.22 0.17 68.7 0.95 29.0 Sun UltraSPARC 248 Solaris 7 9.23 0.070 44.7 0.720 0.370 165 1.85 76.0 IBM RS6000 200 AIX 3.4 16.4 0.080 30.2 1.420 0.360 163 2.19 73.6 MIPS R4400 250 IRIX 6.5 11.3 0.130 52.3 0.910 0.450 206 2.70 89.2 HP 9000/780 180 HP-UX 10.20 13.2 0.110 44.7 0.970 0.510 240 2.91 99.8 AlphaStation 400 4/233 233 DU 4.0 33.2 0.250 109 2.85 1.05 487 6.73 214