Benchmark: uuid lib v4 vs math random vs crypto getRandomValues vs crypto randomUUID

Script Preparation code:

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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 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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})}));

Tests:

uuid lib v4
uuid.v4()
math random
Math.random()
crypto random values
crypto.getRandomValues(new Uint8Array(1))
crypto uuid
crypto.randomUUID()

Historical Performance Data aggregated from 11 community runs

Desktop Results:

Chrome 11 runs

math random

15.6M/s

uuid lib v4

1.2M/s

crypto random values

885K/s

crypto uuid

864K/s

Fastest: math random (18.0x faster)

View exact numbers

✓ math random: 15,557,753 ops/sec
• uuid lib v4: 1,203,645 ops/sec
• crypto random values: 884,790 ops/sec
• crypto uuid: 863,913 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
uuid lib v4
math random
crypto random values
crypto uuid

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 5 months ago)

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.7.2 Mobile/15E148 Safari/604.1

Browser/OS: Mobile Safari 18 on iOS 18.7

View result in a separate tab

math random

327.3M/s

crypto uuid

6.0M/s

crypto random values

3.6M/s

uuid lib v4

1.9M/s

View exact numbers

Test name	Executions per second
✓ math random	327,294,656 Ops/sec
crypto uuid	5,958,198 Ops/sec
crypto random values	3,629,526 Ops/sec
uuid lib v4	1,931,522 Ops/sec

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

LLMs can make mistakes. Check important info.

A coding challenge!

Based on the provided code, I'll assume it's a JavaScript implementation of the UUID (Universally Unique Identifier) library.

To answer your question, I'll provide some insights on the benchmark results:

**Benchmark Results Analysis**

The latest benchmark results show that the `uuid.v4()` function is executed at an average rate of approximately 1105504.75 executions per second, followed by `crypto.randomUUID()`, which averages around 829362.625 executions per second.

The `Math.random()` and `crypto.getRandomValues(new Uint8Array(1))` functions are executed at significantly lower rates, averaging around 863913.0 and 14519286.0 executions per second, respectively.

These results suggest that the UUID library implementation (specifically, `uuid.v4()`) is relatively efficient compared to other JavaScript libraries and built-in functions.

**Some Observations**

1. The `crypto.randomUUID()` function appears to be slower than expected.
2. The `Math.random()` function seems to have a higher execution rate than expected.
3. The `crypto.getRandomValues(new Uint8Array(1))` function is significantly faster than expected.

These observations might indicate areas for optimization or improvements in the implementation of these functions.

**Disclaimer**

Please note that without more context, code review, or specific performance requirements, it's difficult to provide a more detailed analysis or recommendations. The above insights are based on a superficial examination of the benchmark results.

If you'd like to discuss further or ask about potential optimizations for the UUID library implementation, feel free to share more details!

uuid lib v4 vs math random vs crypto getRandomValues vs crypto randomUUID (version: 0)

Comparing performance of: `uuid lib v4 vs math random vs crypto random values vs crypto uuid`

Created: 2 years ago by: Guest

Go to the latest result

uuid lib v4

math random

crypto random values

crypto uuid

Historical Performance Data aggregated from 11 community runs

Desktop Results:

Chrome 11 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

uuid lib v4 vs math random vs crypto getRandomValues vs crypto randomUUID (version: 0)

Comparing performance of: uuid lib v4 vs math random vs crypto random values vs crypto uuid

Created: 2 years ago by: Guest

Go to the latest result

uuid lib v4

math random

crypto random values

crypto uuid

Historical Performance Data aggregated from 11 community runs

Desktop Results:

Chrome 11 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

Related benchmarks

Comparing performance of: `uuid lib v4 vs math random vs crypto random values vs crypto uuid`