Benchmark: mod vs if v3 - MeasureThat.net

HTML Preparation code:

<!DOCTYPE html>
<html>
<body>

<h1>My First Web Page</h1>
<p>My First Paragraph</p>

<p id="1"></p>
<p id="2"></p>
<p id="3"></p>
<p id="4"></p>
<p id="5"></p>
<p id="6"></p>
<p id="7"></p>
<p id="8"></p>
<p id="9"></p>
<p id="10"></p>
<p id="11"></p>
<p id="12"></p>
<p id="13"></p>
<p id="14"></p>
<p id="15"></p>
<p id="16"></p>

</body>
</html>

Script Preparation code:

var INDEX = 0;
var row = 1;
var col = 1;

Tests:

Mod
while(INDEX <= 15){ row = (INDEX % 4) + 1; col = Math.trunc(INDEX / 4) + 1; document.write = row + ", " + col; INDEX += 1; }
if
while(INDEX <= 15){ if (INDEX == 4 || INDEX == 8 || INDEX == 12){ row += 1; col = 1; } else{ col += 1; } document.write = row + ", " + col; INDEX += 1; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Mod
if

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

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's being tested, compared, and their pros and cons.

**Benchmark Definition**

The benchmark is designed to compare two approaches:

1. **Mod**: This approach uses a while loop to iterate from 0 to 15. Inside the loop, it calculates `row` and `col` using the modulo operator (`INDEX % 4`) and integer division (`Math.trunc(INDEX / 4)`), respectively. The result is written to the HTML page using `document.write`.
2. **if**: This approach uses a while loop to iterate from 0 to 15. Inside the loop, it checks if `INDEX` is equal to 4, 8, or 12 using an if statement. If true, it increments `row` by 1 and sets `col` to 1. Otherwise, it increments `col` by 1. The result is written to the HTML page using `document.write`.

**Comparison**

The benchmark compares the performance of these two approaches on a desktop system running Chrome 108.

**Pros and Cons:**

* **Mod**:
	+ Pros:
		- Simple and straightforward implementation.
		- Uses a single loop, reducing overhead.
	+ Cons:
		- Requires integer division, which may be slower than other arithmetic operations.
		- Uses `document.write`, which can be slower due to the DOM update.
* **if**:
	+ Pros:
		- Avoids the need for integer division.
		- Allows for a more flexible condition, making it easier to modify or extend the logic.
	+ Cons:
		- Requires an if statement, which may introduce additional overhead.
		- The condition checks are not as simple as a direct calculation.

**Library and Special JS Features:**

* **document.write**: This is a built-in JavaScript function that writes content directly to the HTML page. While it's convenient, it can be slower due to the DOM update.
* **Math.trunc**: This is a part of the ECMAScript standard and provides integer truncation. It's available in most modern browsers.

**Other Considerations:**

* The benchmark uses a simple while loop for iteration, which might not reflect real-world scenarios where more complex loops or conditional statements are used.
* The condition checks in the `if` approach are limited to specific values. In reality, you might need to check multiple conditions or use more complex logic.

**Alternatives:**

If you were to rewrite this benchmark with alternative approaches, here are some options:

1. **Use a different looping construct**: Instead of while loops, consider using for loops or other constructs that might be faster or more efficient.
2. **Use a more optimized method for calculating `row` and `col`**: Look into alternative methods for calculating these values, such as using bit manipulation or bitwise operations.
3. **Avoid `document.write`**: Consider using other methods to update the HTML page, such as using a DOM library or creating elements programmatically.

Keep in mind that this is just one possible interpretation of the benchmark. Depending on the specific requirements and constraints of your use case, you might need to adjust or modify these approaches accordingly.

Related benchmarks:

mod vs if v3 (version: 0)

Comparing performance of: Mod vs if

Created: 5 years ago by: Guest

Jump to the latest result

Mod

if

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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