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Category Archives: Fractals
Then and Now–Performance Improvements
In a recent post I made an offhand comment that in one fractal calculation scenario my new laptop is about 37,500 times faster than my old Amiga 1000. I suspected that in other fractal calculation scenarios the improvement is much … Continue reading
Posted in Fractals, Math, Performance, Programming
3 Comments
Faster Fractals Through Better Scheduling
Performance improvements can come from many directions including better algorithms or microoptimized inner loops. In this case I got a worthwhile speedup by working better with the Windows thread scheduler.
Posted in Fractals, Investigative Reporting, Performance, Programming, xperf
Tagged fractals, hyperthreads
8 Comments
Faster Fractals Through Algebra
I’ve been working on Fractal eXtreme onandoff for years, and an important (and fun) part of working on it is optimizing the calculation of the Mandelbrot set, especially the highprecision math routines that allow deepzooming. After working on this over … Continue reading
x64 Instructions for Four Times Faster Math
Users sometimes assume that 64bit computers (typically running x64 CPUs) will naturally run faster than 32bit computers (typically running x86 CPUs). They often guess that they will run twice as fast. After all, 64 is twice as big as 32. … Continue reading
Posted in Fractals, Math, Performance, Programming
2 Comments