Benchmark: Tilde VS floor - MeasureThat.net

Script Preparation code:

var a = 1234.56789;

Tests:

Tilde
var b = ~~(a * 4);
Floor
var b = Math.floor(a * 4);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Tilde
Floor

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 10 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36

Browser/OS: Chrome 138 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Tilde	159798656.0 Ops/sec
Floor	130352808.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and its options, pros, cons, and considerations.

**What is being tested?**

The benchmark is comparing the performance of two mathematical operations: `~~` (tilde) and `Math.floor()` on the same input value `a * 4`.

**Options compared**

* `~~` (tilde): The tilde operator in JavaScript returns the largest integer less than or equal to a given number. In this case, it's used to round down `a * 4`.
* `Math.floor()`: This is a built-in JavaScript function that returns the largest integer less than or equal to a given number.

**Pros and Cons of each approach**

* `~~` (tilde):
	+ Pros: Simple, lightweight, and likely optimized by the browser.
	+ Cons: May not work as expected for very large numbers due to overflow issues. The tilde operator is also deprecated in favor of `Math.floor()`.
* `Math.floor()`: This approach provides more accurate results but comes with a slight performance penalty due to the function call overhead.

**Considerations**

When choosing between these two approaches, consider the trade-off between simplicity and accuracy:

* If you need precise control over rounding behavior, use `Math.floor()`. However, this may incur additional overhead.
* If you prioritize brevity and ease of use, `~~` might be sufficient. Be aware that it's deprecated and may not work as expected for large numbers.

**Library usage**

The provided benchmark doesn't rely on any external libraries beyond the standard JavaScript library.

**Special JS features or syntax**

There are no special JavaScript features or syntax used in this benchmark. The focus is solely on comparing the performance of two simple mathematical operations.

Now, let's discuss other alternatives:

* If you need to compare more complex operations or algorithms, consider using a different benchmarking framework that supports a wider range of test cases.
* For production environments, you may want to use a profiling tool like Chrome DevTools or Node.js Inspector to measure performance in a more detailed and realistic setting.

To prepare the benchmark, follow these steps:

1. Define your benchmark's scope, name, description, and preparation code (as shown in the provided example).
2. Write test cases that cover different scenarios and edge cases.
3. Use the `BenchmarkDefinition` format to define each test case.
4. Run the benchmark using a tool like MeasureThat.net or create your own custom implementation.

Remember to consider factors such as platform, browser version, and device type when preparing benchmarks for production environments.

Related benchmarks:

Tilde VS floor (version: 0)

Tilde VS floor

Comparing performance of: Tilde vs Floor

Created: 3 years ago by: Guest

Jump to the latest result

Tilde

Floor

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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