simple

First a few simple programs.

Half are naive line-by-line transliterations from the original C program; others are old initial 2004 and 2005 programs from the archives. The current Ruby mandelbrot multicore programs are 7x faster than this simple Ruby transliteration; and the exhaustively-optimised + multicore + vector-instruction C programs are more-like 25x faster than this simple C program.

source	secs	mem	gz
Intel C	23.34	11,052	427
C gcc #2	25.22	11,112	406
C gcc	26.27	11,112	427
Go #2	26.53	11,112	494
Go	27.22	11,112	462
Java	29.53	41,244	439
C# .NET	47.52	30,452	465
PHP #2	143.01	12,992	391
PHP #3	163.38	13,004	412
PHP	204.22	12,976	384
Ruby #2	19 min	25,596	307
Ruby	20 min	25,492	335
Python 3 #3	23 min	11,064	384
Python 3 #2	30 min	11,192	330
Python 3	1h 03 min	11,032	373
Matz's Ruby	2h 35 min	11,052	335
Matz's Ruby #2	3h 13 min	11,056	307

Transliterations are obviously not idiomatic — does that matter for your purposes? When the archive Ruby #2 and Python #2 programs are most idiomatic they are furthest from identical — are they similar-enough to be comparable for your purposes? (The archive Python #2 program uses a built-in complex-number type.)

Differences in approach — to memory management, parallel programming, regex, arbitrary precision arithmetic, implementation technique — are part and parcel of using different programming languages.

The optimised mandelbrot programs are far from identical — does that matter for your purposes?

Then — As fast as C?

Now — As fast as SSE and AVX instructions?