Benchmark: UUID Implentations Comparison

Tests:

Native Test Case
var x = crypto.randomUUID(); return x;
Javascript Test Case
let d = Date.now(); if ( typeof performance !== 'undefined' && typeof performance.now === 'function' ) { d += performance.now(); // use high-precision timer if available } var x = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) { const r = (d + Math.random() * 16) % 16 | 0; d = Math.floor(d / 16); return (c === 'x' ? r : (r & 0x3) | 0x8).toString(16); }); return x;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native Test Case
Javascript Test Case

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.82 Safari/537.36

Browser/OS: Chrome 98 on Windows

View result in a separate tab

Test name	Executions per second
Native Test Case	380720.2 Ops/sec
Javascript Test Case	80137.0 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and explain what's being tested.

**Benchmark Purpose**

The primary goal of this benchmark is to compare the performance of two UUID (Universally Unique Identifier) generation approaches in JavaScript: a native approach using the `crypto` module, and a JavaScript-only approach that uses high-precision timer and string manipulation.

**Options Compared**

There are two options being compared:

1. **Native Approach**: This approach uses the built-in `crypto.randomUUID()` function, which is optimized for performance and generates a cryptographically secure UUID.
2. **JavaScript Approach**: This approach uses a custom implementation that generates a random UUID using high-precision timer and string manipulation.

**Pros and Cons of Each Approach**

**Native Approach (Crypto Module)**

Pros:

* Optimized for performance and security
* Generates cryptographically secure UUIDs
* Less prone to errors due to built-in validation and normalization

Cons:

* Limited control over the generated UUID's format and structure
* May not be suitable for custom or specialized use cases

**JavaScript Approach**

Pros:

* Provides more control over the generated UUID's format and structure
* Can be customized to meet specific requirements
* Does not rely on external libraries or modules

Cons:

* May be slower due to string manipulation and precision calculations
* Requires manual validation and normalization, which can lead to errors
* Less secure than the native approach due to potential vulnerabilities in custom implementation

**Library Usage**

In this benchmark, two libraries are used:

1. **`crypto` module**: A built-in JavaScript library for generating cryptographically secure UUIDs.
2. None (JavaScript Approach uses custom implementation only)

**Special JS Feature or Syntax**

There is no special JavaScript feature or syntax being tested in this benchmark.

**Benchmark Preparation Code and JSON Interpretation**

The provided `Script Preparation Code` field is empty, which means that the test script should be self-contained and not require any external setup. The `Html Preparation Code` field is also empty, indicating that the test should not rely on any HTML-specific functionality.

To create a benchmark like this, you would need to write two JavaScript functions: one for generating UUIDs using the native approach (`crypto.randomUUID()`), and another for generating UUIDs using the custom JavaScript approach. The benchmark script would then run both functions multiple times, measuring their execution time and comparing the results.

**Other Alternatives**

If you're looking for alternative approaches to generating UUIDs, some options include:

1. **`uuid-v4` library**: A popular and widely-used library for generating version 4 UUIDs.
2. **`uuid-os` library**: A library for generating OS-specific UUIDs.
3. **`random-uuid` library**: A simple library for generating random UUIDs.

Keep in mind that these alternatives may offer different trade-offs in terms of performance, security, and customizability compared to the native approach using `crypto.randomUUID()`.

Related benchmarks:

UUID Implentations Comparison (version: 0)

Comparing performance of: Native Test Case vs Javascript Test Case

Created: 3 years ago by: Guest

Jump to the latest result

Native Test Case

Javascript Test Case

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):