Performance Benchmarks

Comparing 1ls with jq and fx across various operations and data sizes.

Runs per test: 5
Data sizes: 1000, 10000, 100000 records
Environment: Docker (debian:bookworm-slim)

Summary

Tool	Avg Time (ms)	vs 1ls
1ls	0.62	1x
jq	103.17	166x slower
fx	171.61	276x slower

1ls is 166x faster than jq and 276x faster than fx on average.

Lower is better. Times in milliseconds (ms).

Basic Operations (ms)

Operation	Size	jq	fx	1ls
First element	1000	21.26	7.79	0.60
Length	1000	21.26	6.91	0.53
Last element	1000	46.02	7.67	0.47
First element	10000	32.22	41.50	0.47
Length	10000	31.58	38.55	0.47
Last element	10000	31.16	39.53	0.50
First element	100000	158.56	382.21	0.64
Length	100000	188.74	351.79	0.56
Last element	100000	159.04	355.60	0.52

Filter & Map (ms)

Operation	Size	jq	fx	1ls
Filter	1000	20.73	9.49	0.47
Map	1000	19.28	5.89	0.43
Filter+Map	1000	19.78	6.28	0.54
Filter	10000	47.02	65.21	0.48
Map	10000	34.35	44.06	0.53
Filter+Map	10000	37.52	44.58	0.56
Filter	100000	294.43	824.56	0.68
Map	100000	208.42	395.50	0.76
Filter+Map	100000	208.05	401.71	0.54

Aggregation (ms)

Operation	Size	jq	fx	1ls
Sum	1000	20.90	6.21	0.59
Min	1000	20.66	7.21	0.61
Max	1000	20.90	7.37	0.57
Sum	10000	36.98	43.53	0.46
Min	10000	35.86	44.54	0.54
Max	10000	36.44	44.45	0.71
Sum	100000	227.80	397.98	0.65
Min	100000	205.29	396.93	0.50
Max	100000	194.16	388.88	0.49

Builtin Functions (ms)

Operation	Size	jq	fx	1ls
head()	1000	19.93	6.55	0.49
last()	1000	19.88	5.92	0.46
take(10)	1000	19.97	5.62	0.44
uniq()	1000	20.79	8.34	0.42
flatten()	1000	21.53	9.90	0.46
head()	10000	31.34	40.23	0.48
last()	10000	31.81	38.05	0.54
take(10)	10000	31.00	37.69	0.46
uniq()	10000	47.00	61.05	0.48
flatten()	10000	52.07	88.38	0.62
head()	100000	171.62	353.11	0.49
last()	100000	158.29	359.10	0.59
take(10)	100000	151.69	351.13	0.49
uniq()	100000	355.20	576.73	0.53
flatten()	100000	370.08	760.43	0.51

Nested Data Operations (ms)

Operation	Size	jq	fx	1ls
Deep access	1000	20.33	5.20	0.65
Recursive descent	1000	24.40	10.37	0.57
keys()	1000	20.58	5.85	0.56
Deep access	10000	34.54	34.57	0.51
Recursive descent	10000	66.25	67.84	0.53
keys()	10000	34.27	79.35	0.83
Deep access	100000	179.59	312.42	0.50
Recursive descent	100000	507.34	614.31	0.46
keys()	100000	188.50	317.64	0.46

String Operations (ms)

Operation	Size	jq	fx	1ls
split()	1000	20.49	7.99	0.47
startswith()	1000	20.33	6.47	0.48
split()	10000	40.25	61.61	0.53
startswith()	10000	35.71	44.98	0.56
split()	100000	238.15	523.84	0.46
startswith()	100000	188.22	383.31	0.48

Run pnpm run test:bench to regenerate these benchmarks.