Run results for: pako vs. fflate

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0

Browser: Firefox 138

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

zip fflate a

51K/s

zip fflate b

19K/s

zip pako a

18K/s

zip pako b

12K/s

View exact numbers

Test name	Executions per second
✓ zip fflate a	50,931 Ops/sec
zip fflate b	19,302 Ops/sec
zip pako a	17,762 Ops/sec
zip pako b	12,249 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