VW Smalltalk versus Pharo Smalltalk fastest performance

How the programs are written matters! Always look at the source code.

If the fastest programs are hand-written vector instructions, does the host language matter? You might be more interested in the less optimised programs — more seconds, less gz source code.

fannkuch-redux
source	secs	mem	gz	cpu secs
VW Smalltalk	452.48	55,168	916	452.41
Pharo Smalltalk	481.33	77,824	871	484.09
n-body
source	secs	mem	gz	cpu secs
VW Smalltalk	111.27	55,552	1787	111.25
Pharo Smalltalk	116.14	77,952	1801	116.80
spectral-norm
source	secs	mem	gz	cpu secs
VW Smalltalk	49.25	55,424	649	49.25
Pharo Smalltalk	53.50	76,928	683	53.81
VW Smalltalk #2	21.94	290,048	1054	62.27
mandelbrot
source	secs	mem	gz	cpu secs
VW Smalltalk	324.52	55,296	609	324.50
Pharo Smalltalk #2	342.80	76,800	574	344.77
VW Smalltalk #2	102.04	189,824	935	353.57
Pharo Smalltalk	364.57	77,568	573	366.67
pidigits
source	secs	mem	gz	cpu secs
Pharo Smalltalk	7.13	94,840	706	7.19
VW Smalltalk #4	8.19	55,808	757	8.19
regex-redux
source	secs	mem	gz	cpu secs
Pharo Smalltalk		Failed
fasta
source	secs	mem	gz	cpu secs
VW Smalltalk	29.04	55,296	1542	29.04
Pharo Smalltalk #2	42.77	76,928	1381	43.02
Pharo Smalltalk	91.23	77,568	1375	91.76
k-nucleotide
source	secs	mem	gz	cpu secs
VW Smalltalk #5	426.86	385,292	1323	426.80
Pharo Smalltalk #2	491.12	350,172	1105	493.92
Pharo Smalltalk	555.36	350,112	1196	558.56
VW Smalltalk	574.61	386,160	1116	574.54
Pharo Smalltalk #5		Failed
reverse-complement
source	secs	mem	gz	cpu secs
Pharo Smalltalk #2	162.48	1,072,808	724	161.75
Pharo Smalltalk	561.67	1,073,260	907	564.31
VW Smalltalk		Bad Output
binary-trees
source	secs	mem	gz	cpu secs
Pharo Smalltalk	33.05	329,216	673	33.27
VW Smalltalk #3	17.22	375,936	932	37.86
VW Smalltalk	38.94	375,680	717	38.92
VW Smalltalk	VisualWorks® 8.3 Aug 19 2017
Pharo Smalltalk	Pharo 12.0.0 Pharo-12.0.0+SNAPSHOT.build.1507.sha. a4f8da8972214b9c9c39c33e826394a109911041 (64 Bit) Compiler: 5.4.0 20160609