README.md

Benchmarks

Running Benchmarks

To run the benchmark script:

npm run benchmark

Benchmark Results (2019)

The following benchmark results which are outdated and may not accurately reflect all scenarios, so you're encouraged to run the benchmarks yourself or perform performance analysis in your own application.

In particular:

• Because Memize is implemented as a least recently used (LRU) cache, it is optimized for scenarios where the function is called repeatedly with the same arguments. If arguments are less predictable in your usage, the performance benefit may not be as great.
• The included benchmarking script is naive and does not incorporate any randomization of arguments.

The following benchmarks are performed in Node 10.16.0 on a MacBook Pro (2019), 2.4 GHz 8-Core Intel Core i9, 32 GB 2400 MHz DDR4 RAM.

Single argument

Name	Ops / sec	Relative margin of error	Sample size
fast-memoize	360,812,575	± 0.55%	87
memize	128,909,282	± 1.06%	87
moize	102,858,648	± 0.66%	88
lru-memoize	71,589,564	± 0.90%	88
lodash	49,575,743	± 1.00%	88
underscore	35,805,268	± 0.86%	88
memoizee	35,357,004	± 0.55%	87
moize (serialized)	27,246,184	± 0.88%	87
memoizerific	8,647,735	± 0.91%	91
ramda	8,011,334	± 0.74%	90
memoizejs	2,111,745	± 0.52%	88

* Note: fast-memoize uses Function.length to optimize for singular argument functions, which can yield unexpected behavior if not account for.

Multiple arguments (primitive)

Name	Ops / sec	Relative margin of error	Sample size
memize	81,460,517	± 0.61%	88
moize	66,896,395	± 0.90%	83
lru-memoize	26,315,198	± 1.26%	85
memoizee	18,237,056	± 0.60%	90
moize (serialized)	15,207,105	± 0.78%	84
memoizerific	6,363,555	± 0.63%	88
memoizejs	1,764,673	± 0.57%	90
fast-memoize	1,560,421	± 0.72%	87

Multiple arguments (non-primitive)

Name	Ops / sec	Relative margin of error	Sample size
memize	79,105,918	± 0.81%	86
moize	62,374,610	± 0.55%	87
lru-memoize	24,814,747	± 0.54%	89
memoizee	12,119,005	± 0.47%	89
memoizerific	6,748,675	± 0.66%	88
moize (serialized)	2,027,250	± 1.07%	87
fast-memoize	1,263,457	± 1.00%	89
memoizejs	1,075,690	± 0.61%	87