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hansonw/debounce_benchmark.js

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Benchmark of rxjs debounceTime vs lodash debounce
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debounce_benchmark.js
const debounce = require('lodash/debounce');
const {Observable} = require('rxjs');
let next;
const observable = Observable.create(observer => {
next = observer.next.bind(observer);
});
let counter = 0;
for (let i = 0; i < 10; i++) {
console.log(`iteration ${i}`);
const subscription = observable.debounceTime(10).subscribe(() => counter++);
let t = Date.now();
for (let j = 0; j < 500000; j++) {
next();
}
console.log('debounceTime:', Date.now() - t);
subscription.unsubscribe();
const debounced = debounce(() => next(), 10);
const subscription2 = observable.subscribe(() => counter++);
t = Date.now();
for (let j = 0; j < 500000; j++) {
debounced();
}
console.log('lodash.debounce:', Date.now() - t);
subscription2.unsubscribe();
}
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hansonw commented Oct 18, 2017

Output:

iteration 0
debounceTime: 1969
lodash.debounce: 121
iteration 1
debounceTime: 593
lodash.debounce: 65
iteration 2
debounceTime: 582
lodash.debounce: 72
iteration 3
debounceTime: 503
lodash.debounce: 61
iteration 4
debounceTime: 414
lodash.debounce: 70
iteration 5
debounceTime: 550
lodash.debounce: 79
iteration 6
debounceTime: 605
lodash.debounce: 86
iteration 7
debounceTime: 524
lodash.debounce: 61
iteration 8
debounceTime: 475
lodash.debounce: 105
iteration 9
debounceTime: 587
lodash.debounce: 87

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