Benchmark: npm:uuid.v4() vs Math.random() vs crypto.getRandomValues() vs crypto.randomUUID()

Script Preparation code:

!function(r,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e((r="undefined"!=typeof globalThis?globalThis:r||self).uuid={})}(this,(function(r){"use strict";var e="undefined"!=typeof crypto&&crypto.getRandomValues&&crypto.getRandomValues.bind(crypto)||"undefined"!=typeof msCrypto&&"function"==typeof msCrypto.getRandomValues&&msCrypto.getRandomValues.bind(msCrypto),n=new Uint8Array(16);function t(){if(!e)throw new Error("crypto.getRandomValues() not supported. See https://github.com/uuidjs/uuid#getrandomvalues-not-supported");return e(n)}var o=/^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000)$/i;function a(r){return"string"==typeof r&&o.test(r)}for(var i,u,f=[],s=0;s<256;++s)f.push((s+256).toString(16).substr(1));function c(r){var e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=(f[r[e+0]]+f[r[e+1]]+f[r[e+2]]+f[r[e+3]]+"-"+f[r[e+4]]+f[r[e+5]]+"-"+f[r[e+6]]+f[r[e+7]]+"-"+f[r[e+8]]+f[r[e+9]]+"-"+f[r[e+10]]+f[r[e+11]]+f[r[e+12]]+f[r[e+13]]+f[r[e+14]]+f[r[e+15]]).toLowerCase();if(!a(n))throw TypeError("Stringified UUID is invalid");return n}var l=0,d=0;function v(r){if(!a(r))throw TypeError("Invalid UUID");var e,n=new Uint8Array(16);return n[0]=(e=parseInt(r.slice(0,8),16))>>>24,n[1]=e>>>16&255,n[2]=e>>>8&255,n[3]=255&e,n[4]=(e=parseInt(r.slice(9,13),16))>>>8,n[5]=255&e,n[6]=(e=parseInt(r.slice(14,18),16))>>>8,n[7]=255&e,n[8]=(e=parseInt(r.slice(19,23),16))>>>8,n[9]=255&e,n[10]=(e=parseInt(r.slice(24,36),16))/1099511627776&255,n[11]=e/4294967296&255,n[12]=e>>>24&255,n[13]=e>>>16&255,n[14]=e>>>8&255,n[15]=255&e,n}function p(r,e,n){function t(r,t,o,a){if("string"==typeof r&&(r=function(r){r=unescape(encodeURIComponent(r));for(var e=[],n=0;n<r.length;++n)e.push(r.charCodeAt(n));return e}(r)),"string"==typeof t&&(t=v(t)),16!==t.length)throw TypeError("Namespace must be array-like (16 iterable integer values, 0-255)");var i=new Uint8Array(16+r.length);if(i.set(t),i.set(r,t.length),(i=n(i))[6]=15&i[6]|e,i[8]=63&i[8]|128,o){a=a||0;for(var u=0;u<16;++u)o[a+u]=i[u];return o}return c(i)}try{t.name=r}catch(r){}return t.DNS="6ba7b810-9dad-11d1-80b4-00c04fd430c8",t.URL="6ba7b811-9dad-11d1-80b4-00c04fd430c8",t}function h(r){return 14+(r+64>>>9<<4)+1}function y(r,e){var n=(65535&r)+(65535&e);return(r>>16)+(e>>16)+(n>>16)<<16|65535&n}function g(r,e,n,t,o,a){return y((i=y(y(e,r),y(t,a)))<<(u=o)|i>>>32-u,n);var i,u}function m(r,e,n,t,o,a,i){return g(e&n|~e&t,r,e,o,a,i)}function w(r,e,n,t,o,a,i){return g(e&t|n&~t,r,e,o,a,i)}function b(r,e,n,t,o,a,i){return g(e^n^t,r,e,o,a,i)}function A(r,e,n,t,o,a,i){return g(n^(e|~t),r,e,o,a,i)}var U=p("v3",48,(function(r){if("string"==typeof r){var e=unescape(encodeURIComponent(r));r=new Uint8Array(e.length);for(var n=0;n<e.length;++n)r[n]=e.charCodeAt(n)}return function(r){for(var e=[],n=32*r.length,t="0123456789abcdef",o=0;o<n;o+=8){var a=r[o>>5]>>>o%32&255,i=parseInt(t.charAt(a>>>4&15)+t.charAt(15&a),16);e.push(i)}return e}(function(r,e){r[e>>5]|=128<<e%32,r[h(e)-1]=e;for(var n=1732584193,t=-271733879,o=-1732584194,a=271733878,i=0;i<r.length;i+=16){var u=n,f=t,s=o,c=a;n=m(n,t,o,a,r[i],7,-680876936),a=m(a,n,t,o,r[i+1],12,-389564586),o=m(o,a,n,t,r[i+2],17,606105819),t=m(t,o,a,n,r[i+3],22,-1044525330),n=m(n,t,o,a,r[i+4],7,-176418897),a=m(a,n,t,o,r[i+5],12,1200080426),o=m(o,a,n,t,r[i+6],17,-1473231341),t=m(t,o,a,n,r[i+7],22,-45705983),n=m(n,t,o,a,r[i+8],7,1770035416),a=m(a,n,t,o,r[i+9],12,-1958414417),o=m(o,a,n,t,r[i+10],17,-42063),t=m(t,o,a,n,r[i+11],22,-1990404162),n=m(n,t,o,a,r[i+12],7,1804603682),a=m(a,n,t,o,r[i+13],12,-40341101),o=m(o,a,n,t,r[i+14],17,-1502002290),n=w(n,t=m(t,o,a,n,r[i+15],22,1236535329),o,a,r[i+1],5,-165796510),a=w(a,n,t,o,r[i+6],9,-1069501632),o=w(o,a,n,t,r[i+11],14,643717713),t=w(t,o,a,n,r[i],20,-373897302),n=w(n,t,o,a,r[i+5],5,-701558691),a=w(a,n,t,o,r[i+10],9,38016083),o=w(o,a,n,t,r[i+15],14,-660478335),t=w(t,o,a,n,r[i+4],20,-405537848),n=w(n,t,o,a,r[i+9],5,568446438),a=w(a,n,t,o,r[i+14],9,-1019803690),o=w(o,a,n,t,r[i+3],14,-187363961),t=w(t,o,a,n,r[i+8],20,1163531501),n=w(n,t,o,a,r[i+13],5,-1444681467),a=w(a,n,t,o,r[i+2],9,-51403784),o=w(o,a,n,t,r[i+7],14,1735328473),n=b(n,t=w(t,o,a,n,r[i+12],20,-1926607734),o,a,r[i+5],4,-378558),a=b(a,n,t,o,r[i+8],11,-2022574463),o=b(o,a,n,t,r[i+11],16,1839030562),t=b(t,o,a,n,r[i+14],23,-35309556),n=b(n,t,o,a,r[i+1],4,-1530992060),a=b(a,n,t,o,r[i+4],11,1272893353),o=b(o,a,n,t,r[i+7],16,-155497632),t=b(t,o,a,n,r[i+10],23,-1094730640),n=b(n,t,o,a,r[i+13],4,681279174),a=b(a,n,t,o,r[i],11,-358537222),o=b(o,a,n,t,r[i+3],16,-722521979),t=b(t,o,a,n,r[i+6],23,76029189),n=b(n,t,o,a,r[i+9],4,-640364487),a=b(a,n,t,o,r[i+12],11,-421815835),o=b(o,a,n,t,r[i+15],16,530742520),n=A(n,t=b(t,o,a,n,r[i+2],23,-995338651),o,a,r[i],6,-198630844),a=A(a,n,t,o,r[i+7],10,1126891415),o=A(o,a,n,t,r[i+14],15,-1416354905),t=A(t,o,a,n,r[i+5],21,-57434055),n=A(n,t,o,a,r[i+12],6,1700485571),a=A(a,n,t,o,r[i+3],10,-1894986606),o=A(o,a,n,t,r[i+10],15,-1051523),t=A(t,o,a,n,r[i+1],21,-2054922799),n=A(n,t,o,a,r[i+8],6,1873313359),a=A(a,n,t,o,r[i+15],10,-30611744),o=A(o,a,n,t,r[i+6],15,-1560198380),t=A(t,o,a,n,r[i+13],21,1309151649),n=A(n,t,o,a,r[i+4],6,-145523070),a=A(a,n,t,o,r[i+11],10,-1120210379),o=A(o,a,n,t,r[i+2],15,718787259),t=A(t,o,a,n,r[i+9],21,-343485551),n=y(n,u),t=y(t,f),o=y(o,s),a=y(a,c)}return[n,t,o,a]}(function(r){if(0===r.length)return[];for(var e=8*r.length,n=new Uint32Array(h(e)),t=0;t<e;t+=8)n[t>>5]|=(255&r[t/8])<<t%32;return n}(r),8*r.length))}));function I(r,e,n,t){switch(r){case 0:return e&n^~e&t;case 1:return e^n^t;case 2:return e&n^e&t^n&t;case 3:return e^n^t}}function C(r,e){return r<<e|r>>>32-e}var R=p("v5",80,(function(r){var e=[1518500249,1859775393,2400959708,3395469782],n=[1732584193,4023233417,2562383102,271733878,3285377520];if("string"==typeof r){var t=unescape(encodeURIComponent(r));r=[];for(var o=0;o<t.length;++o)r.push(t.charCodeAt(o))}else Array.isArray(r)||(r=Array.prototype.slice.call(r));r.push(128);for(var a=r.length/4+2,i=Math.ceil(a/16),u=new Array(i),f=0;f<i;++f){for(var s=new Uint32Array(16),c=0;c<16;++c)s[c]=r[64*f+4*c]<<24|r[64*f+4*c+1]<<16|r[64*f+4*c+2]<<8|r[64*f+4*c+3];u[f]=s}u[i-1][14]=8*(r.length-1)/Math.pow(2,32),u[i-1][14]=Math.floor(u[i-1][14]),u[i-1][15]=8*(r.length-1)&4294967295;for(var l=0;l<i;++l){for(var d=new Uint32Array(80),v=0;v<16;++v)d[v]=u[l][v];for(var p=16;p<80;++p)d[p]=C(d[p-3]^d[p-8]^d[p-14]^d[p-16],1);for(var h=n[0],y=n[1],g=n[2],m=n[3],w=n[4],b=0;b<80;++b){var A=Math.floor(b/20),U=C(h,5)+I(A,y,g,m)+w+e[A]+d[b]>>>0;w=m,m=g,g=C(y,30)>>>0,y=h,h=U}n[0]=n[0]+h>>>0,n[1]=n[1]+y>>>0,n[2]=n[2]+g>>>0,n[3]=n[3]+m>>>0,n[4]=n[4]+w>>>0}return[n[0]>>24&255,n[0]>>16&255,n[0]>>8&255,255&n[0],n[1]>>24&255,n[1]>>16&255,n[1]>>8&255,255&n[1],n[2]>>24&255,n[2]>>16&255,n[2]>>8&255,255&n[2],n[3]>>24&255,n[3]>>16&255,n[3]>>8&255,255&n[3],n[4]>>24&255,n[4]>>16&255,n[4]>>8&255,255&n[4]]}));r.NIL="00000000-0000-0000-0000-000000000000",r.parse=v,r.stringify=c,r.v1=function(r,e,n){var o=e&&n||0,a=e||new Array(16),f=(r=r||{}).node||i,s=void 0!==r.clockseq?r.clockseq:u;if(null==f||null==s){var v=r.random||(r.rng||t)();null==f&&(f=i=[1|v[0],v[1],v[2],v[3],v[4],v[5]]),null==s&&(s=u=16383&(v[6]<<8|v[7]))}var p=void 0!==r.msecs?r.msecs:Date.now(),h=void 0!==r.nsecs?r.nsecs:d+1,y=p-l+(h-d)/1e4;if(y<0&&void 0===r.clockseq&&(s=s+1&16383),(y<0||p>l)&&void 0===r.nsecs&&(h=0),h>=1e4)throw new Error("uuid.v1(): Can't create more than 10M uuids/sec");l=p,d=h,u=s;var g=(1e4*(268435455&(p+=122192928e5))+h)%4294967296;a[o++]=g>>>24&255,a[o++]=g>>>16&255,a[o++]=g>>>8&255,a[o++]=255&g;var m=p/4294967296*1e4&268435455;a[o++]=m>>>8&255,a[o++]=255&m,a[o++]=m>>>24&15|16,a[o++]=m>>>16&255,a[o++]=s>>>8|128,a[o++]=255&s;for(var w=0;w<6;++w)a[o+w]=f[w];return e||c(a)},r.v3=U,r.v4=function(r,e,n){var o=(r=r||{}).random||(r.rng||t)();if(o[6]=15&o[6]|64,o[8]=63&o[8]|128,e){n=n||0;for(var a=0;a<16;++a)e[n+a]=o[a];return e}return c(o)},r.v5=R,r.validate=a,r.version=function(r){if(!a(r))throw TypeError("Invalid UUID");return parseInt(r.substr(14,1),16)},Object.defineProperty(r,"__esModule",{value:!0})}));
globalThis.randomUUIDLike = function randomUUIDLike() {
  return `${s4()}${s4()}-${s4()}-${s4()}-${s4()}-${s4()}${s4()}${s4()}`;
}
function s4() {
  return (Math.trunc(Math.random() * 0x10000) + 0x10000).toString(16).slice(1, 5);
}

Tests:

npm:uuid.v4()
uuid.v4()
Math.random()
randomUUIDLike()
crypto.getRandomValues()
crypto.getRandomValues(new Uint16Array(8))
crypto.randomUUID()
crypto.randomUUID()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
npm:uuid.v4()
Math.random()
crypto.getRandomValues()
crypto.randomUUID()

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/605.1.15 (KHTML, like Gecko) Version/17.1.2 Safari/605.1.15

Browser/OS: Safari 17 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
npm:uuid.v4()	1425344.4 Ops/sec
Math.random()	755012.2 Ops/sec
crypto.getRandomValues()	2089802.8 Ops/sec
crypto.randomUUID()	5607730.5 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 2 months ago):

LLMs can make mistakes. Check important info.

The code snippet provided appears to be a part of a benchmarking script, likely written in JavaScript. The code is used to compare the performance of different methods for generating UUIDs (Universally Unique Identifiers).

Here's a breakdown of what each section does:

1. `r = Object.create(null)` and `Object.defineProperty(r, "__esModule", { value: !0 })`: This creates an object with no prototype chain (`null` as the prototype) and sets its `__esModule` property to `true`. The latter is likely used to indicate that this object is a module in ES6 syntax.

2. `uuid = require("crypto");`, `globalThis.randomUUIDLike = function randomUUIDLike() { return `${s4()}${s4()}-${s4()}-${s4()}-${s4()}-${s4()}${s4()}${s4()}`; }` and `function s4() { return (Math.trunc(Math.random() * 0x10000) + 0x10000).toString(16).slice(1, 5); }`: These lines import the `crypto` module from Node.js and create a custom function `randomUUIDLike()` that generates random UUIDs by concatenating six random numbers.

3. The benchmarking code: `{ "Benchmark Definition": ..., "Test Name": ... }`. Each object in this array defines a test case, specifying the benchmark definition (e.g., `uuid.v4()`) and its corresponding test name.

The latest benchmark result is provided as an array of objects, each containing information about a single execution:

*   `RawUAString`: The raw user agent string of the browser being tested.
*   `Browser`: The actual browser being used, in this case, Safari 17.
*   `DevicePlatform`: The device platform (Desktop or Mobile) and operating system version.
*   `ExecutionsPerSecond`: The number of executions per second for each test case.
*   `TestName`: The name of the benchmark definition being tested.

By analyzing these results, we can see how different methods for generating UUIDs perform in various browsers and devices. This information could be useful for optimizing performance-critical code or developing applications that need to generate a large number of unique identifiers.

Related benchmarks:

npm:uuid.v4() vs Math.random() vs crypto.getRandomValues() vs crypto.randomUUID() (version: 0)

Comparing performance of: npm:uuid.v4() vs Math.random() vs crypto.getRandomValues() vs crypto.randomUUID()

Created: one year ago by: Guest

Jump to the latest result

npm:uuid.v4()

Math.random()

crypto.getRandomValues()

crypto.randomUUID()

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 2 months ago):