Simple Fractal Benchmark program (in less than 550 lines), console based, .NET Framework 4.7.x (project mono compatible) to measure CPU performance.
Note: that depending on for how complicated the calculations are the results between different CPUs might differ, so to create combined single value one would have to execute several different calculations and use a weight on each but for now I leave that task up for you to solve.
Using
- command line arguments or selected by number keys
- integer / double math operations for Mandelbrot fractal calculations
- singel- or multithreaded code
- with / without allocating memory
- save to file option (raw dump of iterations in each coordinate, needs reprocessing for generating an image)
- with / without repeats (1-99 or endless)
Note: 0 as input or ctrl c (at any time) to exit the program.
Included utilty (FractRaw2Png) to convert the saved raw dump to PNG that takes width and height as arguments and reading output.dat and creating output.png in the same directory.
FractBench 1253
FractRaw2Png 1280 720
Starting FractBench without arguments is very intuitive; just enter from the presented alternatives.
Of the selectable starting locations 1 to 4 they need different processing time to be calculated, with 1 the fastest and 4 the slowest. Location 5 makes it possible to read your own selected from the file location.txt and then process it. If the file could be read its presented as location 5 otherwise 1.
The location.txt is defined by different numbers separated by a new line. Those are (in exact this order):
- center x location
- center y location
- diff or width / height at the specified location
- max iterations
Example of location.txt
-0,545205229166666
-0,601145622083333
0,0000005
5000
Note: depending on your windows localization settings the decimal point might be . instead.
The size of the generated fractal would also affect total processing time, as well as single threaded (slower) compared to multi threaded (faster).
Memtest1 and Memtest2 are included to generate resolution of 16k x 16k and 32k x 32k, use it if you want longer running elapsed times. Memtest1 in combination with multi threaded and location 2 on a AMD Ryzen 9 5950X could take about 3-4 minutes.
When using save to memory the code will allocate enough memory to store the whole image (and can also save iterations to a file, raw format) or if you select none then memory usage will be less of a factor comparing different computers total execution times. Extended information about about allocated memory, min / max iterations and how many times max iterations was reached are displayed.
The idea of repeating the same selected options several times is to find an average or perhaps a lowest execution time, by running it for example 10 times. Its possible to select from 00 to 99 and selecting 00 will continue repeating until ctrl c is pressed.
Selecting the multithreading selects between single threaded (normal for) and multiple threaded (using Parallel.For)
- Multiple (normal) lets .NET select the amount of worker threads
- Multiple (optimal) using twice as many threads as logical cores that I found is getting good results with this algoritm
- Multiple (free) makes it possible to specify amount of worker threads from 2 to 999 (feel free to experiment with more or less threads than normal / optimal)
Using FractBench with arguments is using the same notation like the input entered with the program without arguments.
FractBench 1353
'1' Location 1 (normal / fast calculation intensity; famous Mandelbrot fractal starting location)
'3' a 1080p image (1920 x 1080)
'5' create output.dat file
'3' multi threaded calculation
FractRaw2Png 1920 1080
From the same directory after running the previous command (or move the output.dat to the same directory as FractRaw2Png executable is in) will create output.png from output.dat using the same resolution.
To get 1080p better quality instead generate 4k or 8k image (3840 x 2160 or 7680 x 4320) then downsample (biqubic, bilinear, adaptive or similar) to 1080p (feature not included in FractRaw2Png).
FractBench 223103
'2' Location 2 (medium calculation intensity)
'2' a 720p image (1280 x 720)
'3' not saved to memory but with repeat
'10' repeat 10 times
'3' multi threaded calculation
Build for Release, create and run a batch file like this (or just paste this into the command prompt) for comparable benchmark with the results listed below. Also feel free to try other combinations.
FractBench 2111
FractBench 2313
FractBench 3313
FractBench 4313
FractBench 1723
FractBench 1823
FractBench 2523
2111, 5 845 ms, Location 2, Resolution 640 x 480, Save None, Single threaded
2313, 1 712 ms, Location 2, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
3313, 12 424 ms, Location 3, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
4313, 43 204 ms, Location 4, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
1723, 3 871 ms, Location 1, Resolution 16000 x 16000, Save Memory, Multiple threaded (optimal)
1823, 11 781 ms, Location 1, Resolution 32000 x 32000, Save Memory, Multiple threaded (optimal)
2523, 27 565 ms, Location 2, Resolution 7680 x 4320, Save Memory, Multiple threaded (optimal)
2111, 8 930 ms, Location 2, Resolution 640 x 480, Save None, Single threaded
2313, 4 653 ms, Location 2, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
3313, 36 540 ms, Location 3, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
4313, 140 586 ms, Location 4, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
1723, 5 504 ms, Location 1, Resolution 16000 x 16000, Save Memory, Multiple threaded (optimal)
1823, 20 070 ms, Location 1, Resolution 32000 x 32000, Save Memory, Multiple threaded (optimal)
2523, 82 571 ms, Location 2, Resolution 7680 x 4320, Save Memory, Multiple threaded (optimal)
2111, 9 872 ms, Location 2, Resolution 640 x 480, Save None, Single threaded
2313, 6 198 ms, Location 2, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
3313, 43 802 ms, Location 3, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
4313, 141 861 ms, Location 4, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
1723, 5 573 ms, Location 1, Resolution 16000 x 16000, Save Memory, Multiple threaded (optimal)
1823, 20 878 ms, Location 1, Resolution 32000 x 32000, Save Memory, Multiple threaded (optimal)
2523, 98 860 ms, Location 2, Resolution 7680 x 4320, Save Memory, Multiple threaded (optimal)
2111, 10 238 ms, Location 2, Resolution 640 x 480, Save None, Single threaded
2313, 7 624 ms, Location 2, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
3313, 63 975 ms, Location 3, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
4313, 160 577 ms, Location 4, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
1723, 7 437 ms, Location 1, Resolution 16000 x 16000, Save Memory, Multiple threaded (optimal)
1823, 24 268 ms, Location 1, Resolution 32000 x 32000, Save Memory, Multiple threaded (optimal)
2523, 113 855 ms, Location 2, Resolution 7680 x 4320, Save Memory, Multiple threaded (optimal)
2111, 9 061 ms, Location 2, Resolution 640 x 480, Save None, Single threaded
2313, 6 193 ms, Location 2, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
3313, 46 220 ms, Location 3, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
4313, 150 894 ms, Location 4, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
1723, 5 683 ms, Location 1, Resolution 16000 x 16000, Save Memory, Multiple threaded (optimal)
1823, 22 105 ms, Location 1, Resolution 32000 x 32000, Save Memory, Multiple threaded (optimal)
2523, 105 188 ms, Location 2, Resolution 7680 x 4320, Save Memory, Multiple threaded (optimal)
2111, 12 122 ms, Location 2, Resolution 640 x 480, Save None, Single threaded
2313, 12 294 ms, Location 2, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
3313, 92 506 ms, Location 3, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
4313, 282 490 ms, Location 4, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
1723, 9 354 ms, Location 1, Resolution 16000 x 16000, Save Memory, Multiple threaded (optimal)
1823, 35 796 ms, Location 1, Resolution 32000 x 32000, Save Memory, Multiple threaded (optimal)
2523, 192 768 ms, Location 2, Resolution 7680 x 4320, Save Memory, Multiple threaded (optimal)
2111, 15 740 ms, Location 2, Resolution 640 x 480, Save None, Single threaded
2313, 32 698 ms, Location 2, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
1723, 21 029 ms, Location 1, Resolution 16000 x 16000, Save Memory, Multiple threaded (optimal)
2523, 492 494 ms, Location 2, Resolution 7680 x 4320, Save Memory, Multiple threaded (optimal)
Note: A bit slow, did not run all
2111, 143 992 ms, Location 2, Resolution 640 x 480, Save None, Single threaded
2112, 43 520 ms, Location 2, Resolution 640 x 480, Save None, Multiple threaded (normal)
2113, 44 659 ms, Location 2, Resolution 640 x 480, Save None, Multiple threaded (optimal)
2313, 347 103 ms, Location 2, Resolution 1920 x 1080, Save None, Multiple threaded (optimal)
1421, 11 035 ms, Location 1, Resolution 3840 x 2160, Save Memory, Single threaded
1422, 3 670 ms, Location 1, Resolution 3840 x 2160, Save Memory, Multiple threaded (normal)
1423, 3 562 ms, Location 1, Resolution 3840 x 2160, Save Memory, Multiple threaded (optimal)
1521, 45 901 ms, Location 1, Resolution 7680 x 4320, Save Memory, Single threaded
1522, 16 237 ms, Location 1, Resolution 7680 x 4320, Save Memory, Multiple threaded (normal)
1523, 15 941 ms, Location 1, Resolution 7680 x 4320, Save Memory, Multiple threaded (optimal)
2323, 333 600 ms, Location 2, Resolution 1920 x 1080, Save Memory, Multiple threaded (optimal)
Installed Mono, running from command line with "mono FractBench.exe"
Note: Slow, did not run all (also due to lack of memory - killed!) but also added some variants
1223, Alloc 3,5 mb, Iteration Min 1, Max 989, MaxIter reached 49 045
2323, Alloc 7,9 mb, Iteration Min 9 043, Max 23 452, MaxIter reached 0
3223, Alloc 3,5 mb, Iteration Min 42 104, Max 301 127, MaxIter reached 0
4223, Alloc 3,5 mb, Iteration Min 7 748, Max 1 499 907, MaxIter reached 94 484
1723, Alloc 976,6 mb, Iteration Min 1, Max 999, MaxIter reached 24 166 805
1823, Alloc 3,8 gb, Iteration Min 1, Max 999, MaxIter reached 96 665 047
2523, Alloc 126,6 mb, Iteration Min 9 043, Max 31 782, MaxIter reached 0