Benchmark: Pow Mult - MeasureThat.net

Tests:

Pow
var x = Math.pow(0.6,5);
Mult
var y=1; for(let i=0;i<5;i++)y*=0.6;

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: 4 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.149 Safari/537.36

Browser/OS: Chrome 80 on Windows

View result in a separate tab

Test name	Executions per second
Pow	6536496.5 Ops/sec
Mult	179003248.0 Ops/sec

Autogenerated LLM Summary (model gemma2:9b, generated 2 months ago):

LLMs can make mistakes. Check important info.

This benchmark compares two ways of calculating the result of  0.6 raised to the power of 5 in JavaScript:

**Test Case 1: "Pow"**

*   **Benchmark Definition:** `var x = Math.pow(0.6, 5);`
*   **Description:** This test uses the built-in `Math.pow()` function, which is optimized for calculating powers.

**Test Case 2: "Mult"**

*   **Benchmark Definition:** `var y=1;\r\nfor(let i=0;i<5;i++)y*=0.6;`
*   **Description:** This test simulates the calculation by repeatedly multiplying 0.6 by itself five times, accumulating the result in the variable `y`.

**Pros and Cons:**

*   **Math.pow():**
    *   **Pros:**  Concise, likely more performant due to JavaScript engine optimizations specifically for this operation.
    *   **Cons:** Relies on a specific function, might be less readable for beginners.

*   **For Loop:**
    *   **Pros:** More explicit about the calculation process, can be easier to understand conceptually.
    *   **Cons:**  Potentially slower as it involves multiple iterations and assignments compared to a single optimized function call.

**Other Considerations:**

* **Benchmarking Context:** The results heavily depend on the JavaScript engine (e.g., V8 in Chrome) being used. Different engines have different levels of optimization.
* **Real-World Relevance:** While this benchmark demonstrates performance differences for a specific calculation, the real-world impact might be negligible unless you're dealing with extremely high volumes of these calculations.

**Alternatives:**

In most cases, using `Math.pow()` is the recommended approach for power calculations in JavaScript due to its efficiency and readability.

Let me know if you have any other questions or want to explore specific aspects further!

Related benchmarks:

Pow Mult (version: 0)

Comparing performance of: Pow vs Mult

Created: 4 years ago by: Guest

Jump to the latest result

Pow

Mult

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model gemma2:9b, generated 2 months ago):