Erlang HiPE speed ÷ Java 7 speed | Computer Language Benchmarks Game

1 : Are the Erlang HiPE programs faster? At a glance.

Each chart bar shows, for one unidentified benchmark, how much the fastest Erlang HiPE program used compared to the fastest Java 7 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 Erlang HiPE programs faster? Approximately.

Each table row shows, for one named benchmark, how much the fastest Erlang HiPE program used compared to the fastest Java 7 program.

Erlang HiPE used what fraction? used how many times more?
Benchmark	Time	Memory	Code
binary-trees	2×	±	¹/₂
spectral-norm	3×	±	±
pidigits †	5×	¹/₂	¹/₄
regex-dna	6×	¹/₃	±
fannkuch-redux	6×	¹/₂	±
n-body	7×	¹/₂	±
reverse-complement	8×	3×	±
fasta	10×	¹/₂	±
k-nucleotide	11×	2×	¹/₂
mandelbrot	16×	10×	±

Erlang HiPE used what fraction? used how many times more?
Time-used	\|-	\|---	25%	median	75%	---\|	-\|
(Elapsed secs)	2×	2×	5×	6×	10×	16×	16×

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

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

3 : Are the Erlang HiPE 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 Erlang HiPE program are shown for comparison against measurements of the fastest Java 7 program.

Program Source Code	CPU secs	Elapsed secs	Memory KB	Code B	≈ CPU Load
binary-trees
Erlang HiPE	52.63	16.82	646,636	499	89% 75% 70% 81%
Java 7	21.35	9.21	525,420	1007	50% 70% 48% 65%
spectral-norm
Erlang HiPE	45.01	11.51	14,436	747	99% 98% 98% 98%
Java 7	16.39	4.21	14,740	950	97% 97% 98% 99%
pidigits
Erlang HiPE	24.19	23.20	21,200	512	78% 0% 5% 22% †
Java 7	11.75	5.12	46,488	1826	70% 67% 56% 39% †
regex-dna
Erlang HiPE	185.54	52.36	208,572	1058	82% 97% 95% 80%
Java 7	27.09	9.43	708,060	929	65% 83% 78% 63%
fannkuch-redux
Erlang HiPE	404.65	104.74	8,180	1038	95% 99% 99% 94%
Java 7	67.91	17.17	14,460	1282	98% 99% 100% 100%
n-body
Erlang HiPE	162.90	162.95	8,428	1399	13% 87% 0% 0%
Java 7	24.41	24.39	13,976	1424	0% 0% 0% 100%
reverse-complement
Erlang HiPE	21.66	11.71	762,600	1302	80% 40% 26% 40%
Java 7	2.93	1.52	294,784	1661	32% 59% 58% 47%
fasta
Erlang HiPE	49.74	49.75	8,788	1164	0% 100% 0% 1%
Java 7	5.07	4.99	14,976	1507	2% 0% 100% 1%
k-nucleotide
Erlang HiPE	367.66	137.89	864,700	932	99% 48% 49% 72%
Java 7	44.83	12.93	494,264	1602	84% 81% 85% 99%
mandelbrot
Erlang HiPE	393.85	107.28	662,920	534	94% 92% 91% 92%
Java 7	27.14	6.90	67,612	796	98% 98% 99% 99%
fasta-redux
	No program
Java 7	0.13	0.11	?	1443	0% 18% 0% 91%

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

4 : Are there other Erlang HiPE programs for these benchmarks?

Remember - those are just the fastest Erlang HiPE and Java 7 programs measured on this OS/machine. Check if there are other implementations of these benchmark programs for Erlang HiPE.

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

5 : Are there other faster programs for these benchmarks?

Remember - those are just the fastest Erlang HiPE and Java 7 programs measured on this OS/machine. Check if there are faster implementations of these benchmark programs for other programming languages.