Benchmark: int int int - MeasureThat.net

Script Preparation code:

var n = 434343.434

Tests:

bitwise operator |
n | 0
bitwise operator <<
n << 0
parseInt
parseInt(n)
parseInt with radix
parseInt(n, 10)
math.floor
Math.floor(n)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
bitwise operator \|
bitwise operator <<
parseInt
parseInt with radix
math.floor

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark definition and test cases.

**Benchmark Definition JSON**

The provided JSON represents a JavaScript microbenchmark created on MeasureThat.net. The benchmark defines four test cases:

1. `int int int`: This is likely an empty or placeholder benchmark definition, as it doesn't specify any particular operation.
2. `n | 0`, `n << 0`, `parseInt(n)`, and `parseInt(n, 10)` are the actual test cases.

**Test Cases**

The individual test cases measure the performance of different operations:

1. **`bitwise operator |`**: This tests the performance of the bitwise OR (`|`) operator.
2. **`bitwise operator <<`**: This tests the performance of the left shift (`<<`) operator.
3. **`parseInt`**: This tests the performance of the `parseInt()` function, which converts a string to an integer.
4. **`parseInt with radix`**: This tests the performance of `parseInt()` with a specified radix (base), which allows converting strings in different bases.

**Options Compared**

The benchmark compares the performance of different approaches:

1. **Bitwise OR (`|`) vs. Left Shift (`<<`)**: Both operators perform bit-level operations, but they have different use cases and performance characteristics.
2. **`parseInt` with default radix (base 10) vs. `parseInt with radix`**: The latter test case specifies a radix, which can affect the conversion process.

**Pros and Cons**

Here are some pros and cons of each approach:

1. **Bitwise OR (`|`) vs. Left Shift (`<<`)**:
	* Bitwise OR is generally faster because it performs a simpler operation.
	* However, left shift is often used in more complex operations or when working with large numbers.
2. **`parseInt` with default radix (base 10) vs. `parseInt with radix`**:
	* The default radix is usually faster because it doesn't require additional parsing steps.
	* Specifying a radix can be useful for converting strings in different bases, but it may introduce overhead.

**Other Considerations**

1. **Library Usage**: Some test cases use the `parseInt()` function from the standard library, which is included with most JavaScript engines.
2. **Special JS Features**: None of the provided test cases use special JavaScript features or syntax that are not widely supported.

**Alternatives**

If you wanted to create similar benchmarks for other operations or libraries, consider using MeasureThat.net's API or other benchmarking tools like:

1. Benchmark.js
2. jsperf
3. Microbenchmark

These tools allow you to define and run your own microbenchmarks, comparing different approaches and libraries.

Keep in mind that the results of these benchmarks may vary depending on the specific JavaScript engine, platform, and hardware being used.

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/110.0

Browser/OS: Firefox 110 on Windows

View result in a separate tab

Test name	Executions per second
bitwise operator \|	1114911488.0 Ops/sec
bitwise operator <<	938742720.0 Ops/sec
parseInt	993493120.0 Ops/sec
parseInt with radix	1064302016.0 Ops/sec
math.floor	1006408128.0 Ops/sec

Related benchmarks:

int int int (version: 0)

Comparing performance of: bitwise operator | vs bitwise operator << vs parseInt vs parseInt with radix vs math.floor

Created: 6 years ago by: Registered User

Jump to the latest result

bitwise operator |

bitwise operator <<

parseInt

parseInt with radix

math.floor

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):