Run results for: pako vs. fflate

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:132.0) Gecko/20100101 Firefox/132.0

Browser: Firefox 132

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

zip fflate a

41K/s

zip fflate b

21K/s

zip pako a

9K/s

zip pako b

8K/s

View exact numbers

Test name	Executions per second
✓ zip fflate a	41,340 Ops/sec
zip fflate b	20,599 Ops/sec
zip pako a	9,150 Ops/sec
zip pako b	7,867 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/fflate@0.8.0/umd/index.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pako/2.1.0/pako.min.js"></script>

Script Preparation code:

var enc = new TextEncoder();
var a = new Uint8Array([100 * 1024]);
for (var i; i < 100 * 1024; i++)
    a[i] = Math.floor(Math.random() * 256)
var b = enc.encode('The quick brown fox jumps over the lazy dog '.repeat(50))
var ca = pako.gzip(a)
var cb = pako.gzip(b)
console.log(cb)

Tests:

zip pako a
pako.deflate(a)
zip pako b
pako.deflate(b)
zip fflate a
fflate.gzipSync(a)
zip fflate b
fflate.gzipSync(b)

Run results for: pako vs. fflate

emulate file compression/decompression

zip pako a

zip pako b

zip fflate a

zip fflate b