Benchmark: swap test - MeasureThat.net

Tests:

1
let swap = ([a, b]) => [b, a]; let inArr = [5, 7]; let outArr = swap(inArr); console.log(outArr, 1);
2
let swap = ([a, b]) => [b, a]; let inArr = [5, 7]; let outArr = swap(inArr); console.log(outArr);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
1
2

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

Let's dive into explaining the provided JavaScript microbenchmark.

**Benchmark Definition JSON**

The benchmark definition is empty, which means that the script preparation code and HTML preparation code are also empty. This suggests that the benchmark doesn't require any setup or initialization, making it suitable for a simple swap operation.

**Individual Test Cases**

There are two test cases:

1. The first test case uses the `console.log` function to output the result of the swap operation along with a value (1). This is not necessary for measuring performance, and we can skip it.
2. The second test case simply outputs the result of the swap operation without any additional values.

**Tested Options**

The only option being tested here is the swap operation itself:

```javascript
let swap = ([a, b]) => [b, a];
```

This function takes an array with two elements and returns a new array with the elements swapped. The performance of this function will be measured across different executions per second.

**Pros and Cons**

The approach used here is simple and straightforward. It measures the time taken to execute the swap operation once for each iteration. This provides a basic idea of the function's performance, but it has some limitations:

* **Single execution**: The benchmark only tests the single execution of the swap function, which might not accurately represent real-world scenarios where the function is called multiple times.
* **No input variations**: The test case doesn't vary the input array size or contents, which could affect the performance of the swap function.

To improve the accuracy and usefulness of the benchmark, additional variations could be introduced to simulate real-world usage patterns.

**Library Usage**

There is no explicit library mentioned in the code. However, if we consider the use of `console.log` as a library, it's a built-in JavaScript method used for logging messages to the console.

**Special JS Features or Syntax**

None of the code uses any special JavaScript features or syntax beyond what's considered standard by most JavaScript engines.

**Alternative Benchmarks**

Other alternative approaches could be:

1. **Multi-execution benchmark**: Test the swap function multiple times in a row, simulating repeated calls.
2. **Input variation benchmark**: Vary the input array size and contents to test the performance of the swap function under different conditions.
3. **Multi-threaded or parallel execution benchmark**: Use techniques like Web Workers or async/await to measure the performance of the swap function across multiple CPU cores or threads.
4. **Memory-intensive benchmark**: Measure the performance of the swap function by passing large input arrays, simulating memory-heavy usage scenarios.

By considering these alternative approaches, you can create more comprehensive and realistic benchmarks that better reflect real-world JavaScript application use cases.

Related benchmarks:

swap test (version: 0)

Comparing performance of: 1 vs 2

Created: 8 years ago by: Guest

Jump to the latest result

1

2

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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