evancz/benchmark-report.md

## benchmark-report.md

      
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    Elm 0.15.1 vs 0.16 on Chrome

Result of running these benchmarks on Chrome 45.0.2454.101
These numbers seem to be pretty consistent on Blink-based browsers (Chrome and Opera) but are more like 20% to 50% improvements on FireFox, Safari, and IE. I am not sure how to explain that, so take these numbers more as an indicator of “Elm is generating faster code across the board” as opposed to “Elm is 10x faster!”
business logic from examples

check boxes


benchmark
0.15.1 ops/sec
0.16 ops/sec
comparison


toggle boxes - 7 actions
28,277
263,424
9.32


todomvc


benchmark
0.15.1 ops/sec
0.16 ops/sec
comparison


type in 5 tasks - 80 actions
2,152
18,573
8.63


do everything - 269 actions
382
1,101
2.88


Syntax

case expressions


benchmark
0.15.1 ops/sec
0.16 ops/sec
comparison


Maybe.withDefault 0 (Just 42)
11,090,226
41,723,518
3.76


Maybe.withDefault 0 Nothing
11,592,266
44,721,889
3.86


isBlack Diamond
11,577,379
35,718,600
3.09


evaluate basicBoolean
3,841,394
17,689,892
4.61


evaluate fancyBoolean
1,999,006
11,576,469
5.71


let expressions


benchmark
0.15.1 ops/sec
0.16 ops/sec
comparison


bind numbers, add them
17,098,659
75,893,573
4.44


tuple destructuring
327,967
73,194,881
223.18


record destructuring
251,713
72,069,854
286.32


record updates


benchmark
0.15.1 ops/sec
0.16 ops/sec
comparison


1 of 2 fields
189,967
2,970,974
15.64


2 of 2 fields
116,983
2,699,606
23.08


2 of 2 new
361,041
30,316,190
83.97


3 of 5 fields
355,494
1,214,059
3.42


5 of 5 fields
94,264
1,213,257
12.87


5 of 5 new
260,526
28,545,331
109.57


record access


benchmark
0.15.1 ops/sec
0.16 ops/sec
comparison


2 of 2
17,003,678
42,816,182
2.52


4 of 10
14,723,307
33,334,457
2.26
benchmark	0.15.1 ops/sec	0.16 ops/sec	comparison
type in 5 tasks - 80 actions	2,152	18,573	8.63
do everything - 269 actions	382	1,101	2.88
benchmark	0.15.1 ops/sec	0.16 ops/sec	comparison
Maybe.withDefault 0 (Just 42)	11,090,226	41,723,518	3.76
Maybe.withDefault 0 Nothing	11,592,266	44,721,889	3.86
isBlack Diamond	11,577,379	35,718,600	3.09
evaluate basicBoolean	3,841,394	17,689,892	4.61
evaluate fancyBoolean	1,999,006	11,576,469	5.71
benchmark	0.15.1 ops/sec	0.16 ops/sec	comparison
bind numbers, add them	17,098,659	75,893,573	4.44
tuple destructuring	327,967	73,194,881	223.18
record destructuring	251,713	72,069,854	286.32
benchmark	0.15.1 ops/sec	0.16 ops/sec	comparison
1 of 2 fields	189,967	2,970,974	15.64
2 of 2 fields	116,983	2,699,606	23.08
2 of 2 new	361,041	30,316,190	83.97
3 of 5 fields	355,494	1,214,059	3.42
5 of 5 fields	94,264	1,213,257	12.87
5 of 5 new	260,526	28,545,331	109.57
benchmark	0.15.1 ops/sec	0.16 ops/sec	comparison
2 of 2	17,003,678	42,816,182	2.52
4 of 10	14,723,307	33,334,457	2.26