reverse-complement

Always look at the source code.

Look at the slower simple sequential programs, and look at the parallel programs written for multicore, and look at the low-level programs written for SIMD.

×	source	secs	mem	gz	busy	cpu load
1.0	Matz's Ruby #2	38.45	492,804	264	38.84	100% 0% 1% 0%
1.0	Ruby #2	31.78	511,692	264	34.71	5% 54% 47% 4%
1.0	PHP #2	22.83	1,781,136	274	24.35	43% 55% 8% 1%
1.1	Perl #3	10.60	1,494,988	287	10.72	37% 0% 0% 63%
1.1	Ruby #5	48.10	1,611,568	295	50.40	17% 25% 20% 43%
1.2	PHP	18.67	1,474,868	312	19.84	97% 4% 0% 4%
1.3	Python 3 #4	291.98	3,660,148	335	7 min	63% 16% 17% 49%
1.6	Python 3 #2	16.41	1,772,696	434	17.57	1% 78% 28% 0%
1.7	PHP #3	14.19	529,416	438	22.75	35% 54% 49% 21%
1.7	Julia #9	3.59	669,324	449	3.97	4% 4% 98% 4%
1.7	Julia #2	66.60	1,697,452	460	69.52	2% 8% 92% 2%
1.8	Python 3	19.24	1,971,912	479	20.46	65% 36% 5% 2%
2.0	Ruby #3	82.39	1,513,432	517	149.93	49% 47% 33% 53%
2.0	Julia #8	3.03	671,492	522	3.54	5% 8% 6% 98%
2.1	Racket	56.24	1,733,560	553	59.47	27% 4% 2% 73%
2.1	Lua #2	73.60	2,654,680	553	79.67	23% 28% 8% 49%
2.2	C++ g++	11.68	979,932	592	11.91	64% 1% 1% 36%
2.3	Lua #4	77.81	634,096	594	82.19	3% 83% 18% 2%
2.3	Ruby #4	46.45	2,009,748	601	63.74	39% 20% 52% 26%
2.3	Go #3	4.00	827,360	605	4.29	86% 12% 1% 8%
2.3	Go #2	3.73	826,488	611	4.10	88% 6% 2% 14%
2.4	Erlang HiPE #3	5 min	3,569,912	630	7 min	31% 23% 42% 32%
2.5	C gcc #5	2.87	994,056	647	2.90	0% 1% 0% 100%
2.5	Java #4	11.09	1,930,096	651	12.19	52% 15% 7% 37%
2.7	C gcc #4	7.66	500,388	709	7.89	83% 1% 2% 17%
2.7	C++ g++ #5	47.28	744,792	720	47.86	69% 1% 1% 31%
2.8	C gcc #2	2.21	994,308	750	3.29	19% 14% 76% 40%
2.8	Java #6	10.72	2,060,312	752	19.86	40% 60% 42% 43%
2.8	Lua #5	72.92	2,164,164	752	77.21	2% 4% 4% 96%
2.9	Chapel #3	3.52	1,916,472	755	8.53	98% 48% 49% 48%
2.9	Free Pascal #2	6.84	495,112	771	6.94	70% 1% 1% 30%
2.9	Intel Fortran #2	131.20	760,304	772	155.14	15% 25% 14% 65%
3.1	Python 3 #6	19.93	1,004,960	814	26.15	28% 28% 29% 45%
3.1	C gcc #6	1.92	551,900	820	2.58	20% 99% 14% 1%
3.2	C++ g++ #3	4.75	500,020	840	4.82	100% 0% 0% 1%
3.4	Dart #4	255.89	1,159,448	885	293.58	13% 50% 22% 30%
3.4	Lisp SBCL	11.42	1,390,812	904	11.59	1% 1% 49% 51%
3.5	Ada 2012 GNAT	19.72	500,140	937	20.04	79% 1% 0% 21%
3.7	Haskell GHC #2	29.23	3,465,812	982	29.96	27% 21% 23% 32%
3.7	Chapel #2	5.62	1,051,996	983	9.06	98% 33% 8% 21%
3.8	Go #5	4.36	1,508,976	996	7.09	28% 14% 55% 66%
3.9	Intel Fortran	4.94	985,376	1019	5.28	95% 3% 3% 6%
3.9	Haskell GHC #3	6.59	501,560	1020	9.74	92% 15% 19% 22%
3.9	Racket #2	17.41	568,032	1030	22.12	15% 3% 100% 9%
4.2	Java #5	7.62	1,126,580	1108	8.03	98% 4% 1% 3%
4.3	F# .NET Core #4	3.04	1,031,864	1139	8.64	58% 97% 35% 94%
4.3	F# .NET Core #5	2.93	1,031,696	1140	8.52	94% 45% 60% 90%
4.4	Erlang HiPE #4	199.48	1,994,296	1171	287.11	20% 41% 62% 21%
4.6	Node js #2	24.02	707,320	1221	28.04	24% 43% 37% 12%
4.9	Swift	3.79	753,924	1286	4.83	7% 70% 12% 39%
4.9	Erlang HiPE	41.88	2,600,884	1302	115.39	74% 77% 62% 62%
5.0	Rust #2	1.69	994,988	1330	2.95	26% 45% 79% 24%
5.1	Go #6	4.16	1,840,788	1338	7.01	51% 59% 33% 25%
5.2	OCaml	3.74	33,944	1368	8.90	62% 58% 60% 59%
5.6	Node js #7	4.10	1,340,368	1480	8.58	52% 56% 73% 28%
5.6	Node js #8	4.25	1,340,496	1481	9.04	64% 48% 29% 71%
6.1	C# .NET Core #5	4.21	985,176	1613	7.04	14% 37% 95% 21%
6.1	C# .NET Core #6	3.16	1,029,156	1621	7.90	57% 77% 63% 53%
6.2	Java #7	44.49	1,032,276	1647	54.72	42% 29% 17% 35%
6.5	Java #3	4.87	1,173,612	1722	10.99	68% 50% 42% 66%
6.9	C++ g++ #6	6.62	1,578,600	1832	9.06	67% 17% 32% 20%
7.9	C++ g++ #2	1.89	499,672	2093	1.94	100% 2% 1% 1%
8.3	Java #8	3.27	714,144	2183	7.54	47% 60% 66% 58%
12	Ada 2012 GNAT #2	4.05	789,068	3283	4.64	40% 1% 72% 1%
	Dart #3			Failed
	Dart #2			Failed
	Go			Failed
	Lisp SBCL #2			Failed
	OCaml #4			Make Error
	OCaml #2			Make Error
	OCaml #3			Make Error
	Ruby			Failed
	Matz's Ruby #5			Failed
	Matz's Ruby #3			Bad Output
	Matz's Ruby			Failed
	Matz's Ruby #4			Failed
	VW Smalltalk			Bad Output