benchmark.md

Benchmark

How fast is faiNumber-Fortran?

The below are benchmark results for faiNumber-Fortran(Version 1n.0.0.f) comparing to the read() method of Fortran. Each test ran 3 times and the average result from all 3 runs is used as the result. Results are in seconds with 3 decimal placement. For the result, the lower is the better.

Although this benchmark test was run as a build for f2018, other versions of Fortran(from gfortran's -std=legacy to f2003) were tested lightly and did show to operate at almost similar or as the same speed as the benchmark score below.

CPU: AMD® A10-7800 radeon r7, 12 compute cores 4c+8g × 4

OS: Ubuntu 18.04.1 LTS

Compiler: gfortran 8

Fotran Version: f2018

Parsed a string 10,000,000 times.

The string: "-2147483648"

2 side spaces: length 50 with 20 spaces to the left

Right side spaces: length 50

	Exact Length	2 Sides Spaces	Right Spaces
read()	7.815s	11.239s	7.704s
decToInt32()	0.526s	1.467s	1.764s
decToInt32TrueError()	0.521s	1.463s	1.749s

Parsed a string 10,000,000 times.

The string: "-9223372036854775808"

2 side spaces: length 100 with 20 spaces to the left

Right side spaces: length 100

	Exact Length	2 Sides Spaces	Right Spaces
read()	10.097s	13.646s	10.052s
decToInt64()	0.881s	3.174s	3.282s
decToInt64TrueError()	0.873s	3.163s	3.251s

Parsed a string 10,000,000 times.

The string: "-170141183460469231731687303715884105728"

2 side spaces: length 100 with 20 spaces to the left

Right side spaces: length 100

	Exact Length	2 Sides Spaces	Right Spaces
read()	16.603s	20.358s	16.664s
decToInt128()	3.631s	5.331s	5.588s
decToInt128TrueError()	3.580s	5.434s	5.485s