Benchmark: Math.pow vs ** vs * (2)

Script Preparation code:

var tmp;

Tests:

pow
tmp = Math.pow(6, 21);
**
tmp = 6 ** 21;
*
tmp = 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6;
pow, new variable
var tmp2 = Math.pow(6, 21);
**, new variable
var tmp2 = 6 ** 21;
*, new variable
var tmp2 = 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6 * 6;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
pow
**
*
pow, new variable
**, new variable
*, new variable

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

**Overview of the Benchmark**

The provided JSON represents a set of benchmark tests for comparing the performance of different mathematical operations: `Math.pow`, `**` (exponentiation), and `*` (multiplication). The benchmarks are designed to measure how fast each operation can be executed on a specific input value.

**Options Compared**

There are four variations of each operation being compared:

1. **`pow`**: Using `Math.pow` with the same variable name for both calculation and assignment.
2. **`*` (with new variable)**: Using two separate variables, one for calculation and another for assignment.
3. **`** (exponentiation)`: Using exponentiation operator (`**`) without a new variable.
4. **`* (with new variable)`: Using two separate variables, one for calculation and another for assignment.

**Pros and Cons of Each Approach**

1. **`pow`**: Simple and straightforward approach. However, it might lead to slower performance due to the repeated assignment operation.
2. **`* (with new variable)`**: Assigning a value to a new variable before calculating the result can improve performance by reducing overhead. However, this requires more memory allocation and potential cache misses.
3. **`** (exponentiation)`**: Using exponentiation operator (`**`) is generally faster than other approaches since it's optimized for performance in modern JavaScript engines.
4. **`* (with new variable)`**: Similar to the previous approach, but using multiplication instead of exponentiation. This can lead to slightly slower performance compared to `**`.

**Library Used**

None explicitly mentioned in the JSON. However, it's worth noting that `Math.pow` and `Math.sqrt` are part of the JavaScript Math library, which is included with most modern browsers.

**Special JS Features/Syntax**

None explicitly mentioned in the provided JSON. However, it's essential to consider features like `let`, `const`, and `var` declarations, as well as any potential performance implications of using these keywords.

**Other Alternatives**

Alternative approaches might include:

1. **Using a library or framework-specific function**: If a specific library or framework (e.g., React Native) provides optimized functions for these operations.
2. **Parallelizing calculations**: Using Web Workers or similar techniques to perform multiple calculations concurrently, potentially leading to improved performance.
3. **Using SIMD instructions**: Leveraging the CPU's Single Instruction, Multiple Data (SIMD) capabilities to execute multiple calculations simultaneously.

Keep in mind that these alternatives would require more advanced knowledge of parallel computing, Web Workers, and low-level optimizations.

Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36

Browser/OS: Chrome 79 on Mac OS X 10.15.2

View result in a separate tab

Test name	Executions per second
pow	3782669.2 Ops/sec
**	8688158.0 Ops/sec
*	8683320.0 Ops/sec
pow, new variable	7525721.5 Ops/sec
**, new variable	866893248.0 Ops/sec
*, new variable	865183104.0 Ops/sec

Related benchmarks:

Math.pow vs ** vs * (2) (version: 0)

Comparing performance of: pow vs ** vs * vs pow, new variable vs **, new variable vs *, new variable

Created: 4 years ago by: Registered User

Jump to the latest result

pow

**

*

pow, new variable

**, new variable

*, new variable

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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