Benchmark: fractional math pow vs multiply

Tests:

pow
var x = Math.pow(54,0.25);
mult
var y = 54*54

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
pow
mult

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Browser/OS: Chrome 129 on Windows

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Test name	Executions per second
pow	16665954.0 Ops/sec
mult	208874464.0 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 explain what is being tested.

**Overview**

The test case, titled "fractional math pow vs multiply", compares two approaches to calculating a fractional power: using `Math.pow()` with a decimal exponent versus multiplying by itself repeatedly. This is a classic example of an optimization problem, where the goal is to find the most efficient way to perform this calculation.

**Approaches Compared**

There are two approaches being compared:

1. **`Math.pow(54, 0.25)`**: This uses the built-in `Math.pow()` function with a decimal exponent.
2. **`var y = 54 * 54`**: This multiplies `54` by itself repeatedly to achieve the same result.

**Pros and Cons of Each Approach**

1. **`Math.pow(54, 0.25)`**:
	* Pros:
		+ More concise and readable code.
		+ Built-in function, which implies a layer of abstraction and potentially better error handling.
	* Cons:
		+ May be slower due to the overhead of calling a built-in function with a decimal exponent.
2. **`var y = 54 * 54`**:
	* Pros:
		+ Faster execution time since it avoids the overhead of a built-in function call.
	* Cons:
		+ Less readable and maintainable code due to the use of repeated multiplication.

**Library Usage**

There is no explicit library usage in this benchmark. However, the `Math` object, which includes the `pow()` function, is a part of the JavaScript standard library.

**Special JS Feature or Syntax**

There are no special features or syntax used in this benchmark beyond what's typically available in modern JavaScript implementations.

**Other Alternatives**

If you're looking to optimize this calculation further, some alternative approaches could include:

* Using a more specialized library like `decimal.js` for decimal arithmetic.
* Utilizing hardware-accelerated math libraries like SIMD (Single Instruction, Multiple Data) or FPU (Floating-Point Unit).
* Employing iterative methods like exponentiation by squaring.

Keep in mind that these alternatives might introduce additional overhead, complexity, or dependencies, so it's essential to weigh the trade-offs before choosing an approach.

Related benchmarks:

fractional math pow vs multiply (version: 0)

Comparing performance of: pow vs mult

Created: one year ago by: Guest

Jump to the latest result

pow

mult

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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