Go speed ÷ C gcc speed | Computer Language Benchmarks Game

1 : Are the Go programs faster? At a glance.

Each chart bar shows, for one unidentified benchmark, how much the fastest Go program used compared to the fastest C gcc program.

These are not the only compilers and interpreters. These are not the only programs that could be written. These are not the only tasks that could be solved. These are just 10 tiny examples.

2 : Are the Go programs faster? Approximately.

Each table row shows, for one named benchmark, how much the fastest Go program used compared to the fastest C gcc program.

Go used what fraction? used how many times more?
Benchmark	Time	Memory	Code
fasta	±	3×	±
fasta-redux	±	3×	±
fannkuch-redux	±	3×	¹/₂
reverse-complement †	2×	±	2×
pidigits	2×	5×	±
k-nucleotide	2×	±	¹/₂
mandelbrot	2×	±	±
spectral-norm	2×	2×	±
n-body	3×	3×	±
regex-dna	8×	2×	¹/₃
binary-trees	13×	4×	±

Go used what fraction? used how many times more?
Time-used	\|-	\|---	25%	median	75%	---\|	-\|
(Elapsed secs)	±	±	2×	2×	2×	4×	13×

† possible mismatch - one-core program compared to multi-core program.

± read the measurements and then read the program source code.

3 : Are the Go programs faster? Measurements.

These are not the only tasks that could be solved. These are just 10 tiny examples. These are not the only compilers and interpreters. These are not the only programs that could be written.

For each named benchmark, measurements of the fastest Go program are shown for comparison against measurements of the fastest C gcc program.

Program Source Code	CPU secs	Elapsed secs	Memory KB	Code B	≈ CPU Load
fasta
Go	6.94	6.94	1,272	1036	82% 20% 2% 0%
C gcc	5.96	5.97	372	1221	0% 0% 0% 100%
fasta-redux
Go	1.96	1.96	1,272	1236	1% 100% 0% 1%
C gcc	1.60	1.61	372	1321	0% 0% 99% 1%
fannkuch-redux
Go	73.68	18.52	1,276	900	100% 99% 99% 99%
C gcc	48.38	12.42	412	1557	98% 93% 98% 100%
reverse-complement
Go	1.03	0.95	249,932	1243	68% 40% 0% 0% †
C gcc	0.80	0.56	248,716	741	16% 20% 44% 73% †
pidigits
Go	3.30	3.13	4,216	607	0% 100% 2% 2%
C gcc	1.72	1.73	936	448	0% 0% 1% 100%
k-nucleotide
Go	76.93	30.64	262,232	1268	48% 83% 99% 22%
C gcc	44.64	16.00	180,380	2280	35% 50% 98% 97%
mandelbrot
Go	46.72	11.70	30,000	700	100% 100% 100% 100%
C gcc	23.52	5.89	25,976	879	100% 100% 100% 100%
spectral-norm
Go	15.73	4.07	1,508	668	96% 97% 99% 96%
C gcc	7.87	1.98	748	569	99% 99% 99% 100%
n-body
Go	26.58	26.58	1,272	1310	83% 17% 0% 0%
C gcc	9.33	9.34	432	1490	100% 0% 0% 1%
regex-dna
Go	65.12	19.76	470,000	785	77% 77% 99% 77%
C gcc	5.76	2.50	292,128	2579	69% 68% 49% 46%
binary-trees
Go	239.15	63.51	556,544	688	94% 94% 96% 94%
C gcc	15.71	4.79	155,788	850	93% 67% 78% 94%

† possible mismatch - one-core program compared to multi-core program.

4 : Are there other Go programs for these benchmarks?

Remember - those are just the fastest Go and C gcc programs measured on this OS/machine. Check if there are other implementations of these benchmark programs for Go.

Maybe one of those other Go programs is fastest on a different OS/machine.

5 : Are there other faster programs for these benchmarks?

Remember - those are just the fastest Go and C gcc programs measured on this OS/machine. Check if there are faster implementations of these benchmark programs for other programming languages.

Maybe one of those other programs is fastest on a different OS/machine.

Go : types just are - Go is an experiment

go version go1.1 linux/amd64

SPLASH 2012 Go at Google: Language Design in the Service of Software Engineering

Home Page: Go - a systems programming language

Download: Installing Go

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