Benchmark: large string comparison benchmark

Script Preparation code:

let s1MB = "0123456789".repeat(1000*100);
var strings1MB = Array.from(Array(20)).map(o=>s1MB + String.fromCharCode(32+~~(Math.random()*96)))

let s2MB = "0123456789".repeat(1000*200);
var strings2MB = Array.from(Array(20)).map(o=>s2MB + String.fromCharCode(32+~~(Math.random()*96)))

let s10MB = "0123456789".repeat(1000*1000);
var strings10MB = Array.from(Array(20)).map(o=>s10MB + String.fromCharCode(32+~~(Math.random()*96)))

let s10MB2 = "0123456789".repeat(1000*1000);
var strings10MB2 = Array.from(Array(20)).map(o=>s10MB + String.fromCharCode(32+~~(Math.random()*96)))

Tests:

1MB string comparison
const s1 = strings1MB[~~(strings1MB.length*Math.random())]; const s2 = strings1MB[~~(strings1MB.length*Math.random())]; const b = s1 === s2;
2MB string comparison
const s1 = strings2MB[~~(strings2MB.length*Math.random())]; const s2 = strings2MB[~~(strings2MB.length*Math.random())]; const b = s1 === s2;
10MB string comparison
const s1 = strings10MB[~~(strings10MB.length*Math.random())]; const s2 = strings10MB[~~(strings10MB.length*Math.random())]; const b = s1 === s2;
10MB string comparison (equal)
const s1 = strings10MB2[~~(strings10MB2.length*Math.random())]; const s2 = s1 + ""; const b = s1 === s2;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
1MB string comparison
2MB string comparison
10MB string comparison
10MB string comparison (equal)

Fastest: N/A

Slowest: N/A

ⓘ Get performance results from real users on your website with Request Metrics.

Website Performance Monitoring by Request Metrics

Latest run results:

Run details: (Test run date: 6 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser/OS: Chrome 119 on Windows

View result in a separate tab

Test name	Executions per second
1MB string comparison	21673.3 Ops/sec
2MB string comparison	5327.3 Ops/sec
10MB string comparison	461.6 Ops/sec
10MB string comparison (equal)	3435385.0 Ops/sec

large string comparison benchmark (version: 0)

Worst case large string comparison with large equal string comparison.

Comparing performance of: 1MB string comparison vs 2MB string comparison vs 10MB string comparison vs 10MB string comparison (equal)

Created: 6 months ago by: Guest

Jump to the latest result

1MB string comparison

2MB string comparison

10MB string comparison

10MB string comparison (equal)

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A