Benchmark: slice sort vs sort

Script Preparation code:

var a=Array.from({length:100},()=>Math.random())

Tests:

slice sort
var b = a.slice(); b.sort();
sort
a.sort()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
slice sort
sort

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36

Browser/OS: Chrome 106 on Linux

View result in a separate tab

Test name	Executions per second
slice sort	94130.1 Ops/sec
sort	387342.4 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and its test cases to understand what's being tested.

**Benchmark Overview**

The benchmark is designed to compare the performance of two sorting algorithms: `slice` sort and the built-in JavaScript `sort()` function. The goal is to determine which algorithm performs better in terms of speed.

**Script Preparation Code**

The script preparation code generates an array of 100 random numbers using the `Array.from()` method:
```javascript
var a = Array.from({ length: 100 }, () => Math.random());
```
This creates an array of random numbers, which will be used as input for both sorting algorithms.

**Html Preparation Code**

There is no HTML preparation code provided, so we can assume that the benchmark only runs in the JavaScript environment.

**Test Cases**

The test cases are defined in the `Benchmark Definition` JSON:
```json
[
    {
        "Benchmark Definition": "var b = a.slice();\nb.sort();",
        "Test Name": "slice sort"
    },
    {
        "Benchmark Definition": "a.sort();",
        "Test Name": "sort"
    }
]
```
There are two test cases:

1. `slice sort`: This test case creates a copy of the original array using `Array.prototype.slice()` and then sorts it using the `sort()` method.
2. `sort`: This test case simply sorts the original array using the `sort()` method.

**Libraries Used**

None of the provided benchmark code uses any external libraries. It only relies on built-in JavaScript features.

**Special JS Features or Syntax**

The `slice()` method is a standard JavaScript array method, but it's worth noting that modern browsers may optimize its behavior, especially when used with large arrays like this one. Additionally, the `sort()` method may have different performance characteristics depending on the browser and platform.

**Pros and Cons of Different Approaches**

Here are some pros and cons of each approach:

1. **Slice Sort**: Pros:
	* Can be faster for small to medium-sized arrays due to its simplicity.
	* May be more predictable in terms of performance.
Cons:
	* Requires an extra copy of the array, which can be memory-intensive for large arrays.
2. **Built-in sort()**: Pros:
	* Optimized by modern browsers for performance.
	* Can handle large arrays efficiently.
Cons:
	* May have varying performance characteristics depending on the browser and platform.
	* Can be slower than `slice sort` for small to medium-sized arrays.

**Other Alternatives**

Some alternative sorting algorithms that could be used in this benchmark include:

1. **Merge Sort**: A divide-and-conquer algorithm that's known for its stability and efficiency.
2. **Quick Sort**: Another divide-and-conquer algorithm that's fast but can have poor performance on certain inputs.
3. **Radix Sort**: A non-comparative sorting algorithm that's optimized for numerical data.

Keep in mind that the choice of algorithm will depend on the specific requirements and constraints of the project.

**Benchmark Result Interpretation**

The provided benchmark result shows the execution rate (in executions per second) for each test case:

1. `sort`: 94130.109375
2. `slice sort`: 387342.375

Based on this result, it appears that the built-in `sort()` function is significantly faster than the `slice` sort approach.

I hope this explanation helps!

Related benchmarks:

slice sort vs sort (version: 0)

Comparing performance of: slice sort vs sort

Created: one year ago by: Guest

Jump to the latest result

slice sort

sort

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):