Benchmark: Immerjs vs Immutable vs Shallow copy (performance test)

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/immer/dist/immer.umd.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/immutable/3.8.2/immutable.js"></script>

Script Preparation code:

//const { fromJS } = require('immutable');
var data = { items: {}, count: 0, keys: [] }

for (let index = 0; index < 100000; index++) {
  data[index] = { id: index, name: `ITEM-${index}`, value: Math.random() }
  data.count++
  data.keys.push(index)
}

var NEW_ITEM_ID = data.count +1

var produce = immer.default

var im = Immutable.fromJS(data);

Tests:

immer
data = produce(data, draft => { draft.items[NEW_ITEM_ID] = { id: NEW_ITEM_ID, name: 'ITEM-NEW', value: 0 } draft.counter++ draft.keys.push(NEW_ITEM_ID) })
Immutable
var im = Immutable.fromJS(data); im = im.set('items', im.get('items').set(NEW_ITEM_ID, { id: NEW_ITEM_ID, name: 'ITEM-NEW', value: 0 })); im = im.set('count', im.count +1); im = im.set('keys', im.get('keys').push(NEW_ITEM_ID));
Shallow copy
data = { ...data, items: { ...data.items, [NEW_ITEM_ID]: { id: NEW_ITEM_ID, name: 'ITEM-NEW', value: 0 }, }, count: data.count + 1, keys: [...data.keys, NEW_ITEM_ID] }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
immer
Immutable
Shallow copy

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Browser/OS: Chrome 127 on Mac OS X 10.15.7

View result in a separate tab

Shallow copy

4K/s

immer

22/s

Immutable

9/s

View exact numbers

Test name	Executions per second
✓ Shallow copy	3,545 Ops/sec
immer	22 Ops/sec
Immutable	9 Ops/sec

Immerjs vs Immutable vs Shallow copy (performance test) (version: 1) Benchmark.js

Comparing performance of: `immer vs Immutable vs Shallow copy`

Created: 5 years ago by: Registered User

Go to the latest result

immer

Immutable

Shallow copy

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Immerjs vs Immutable vs Shallow copy (performance test) (version: 1) Benchmark.js

Comparing performance of: immer vs Immutable vs Shallow copy

Created: 5 years ago by: Registered User

Go to the latest result

immer

Immutable

Shallow copy

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `immer vs Immutable vs Shallow copy`