Benchmark: mutiplyyyyyy - MeasureThat.net

Script Preparation code:

var a = 1;

Tests:

a
eval(""); a * 5;
b
eval(""); a + a + a + a + a;
c
eval(""); a + a;
d
eval(""); a + 1;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
a
b
c
d

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

I'd be happy to help you understand the provided benchmark.

**What is being tested?**

The benchmark measures the performance of JavaScript's multiplication operation (`*`) in different scenarios. The test cases are designed to evaluate how efficiently the browser can execute arithmetic operations, specifically multiplication.

**Options compared:**

There are four test cases:

1. `a`: `eval("\"); a * 5;` (evaluation with parentheses and multiplication)
2. `b`: `eval("\"); a + a + a + a + a;` (evaluation without parentheses and repeated addition)
3. `c`: `eval("\"); a + a;` (evaluation without parentheses and simple addition)
4. `d`: `eval("\"); a + 1;` (evaluation with a small constant and simple addition)

**Pros and Cons of different approaches:**

1. **Evaluation with parentheses (`a`)**:
	* Pros: Clear expression, easy to read and understand.
	* Cons: Evaluates the entire expression before executing the multiplication, which might lead to unnecessary calculations.
2. **Repeated addition without parentheses (`b`)**:
	* Pros: Simplifies the calculation by avoiding repeated assignments.
	* Cons: Can lead to slower performance due to repeated additions and potential caching issues.
3. **Simple addition without parentheses (`c`)**:
	* Pros: Similar to `a`, but with fewer operations, potentially faster execution.
	* Cons: Still evaluates the expression before executing the multiplication.
4. **Small constant addition (`d`)**:
	* Pros: Reduces the number of calculations required, potentially faster execution.
	* Cons: May not accurately represent real-world usage scenarios.

**Library and purpose:**

There is no explicitly mentioned library in the provided benchmark. However, the use of `eval()` suggests that the benchmark is intentionally trying to avoid any additional libraries or dependencies that might affect performance.

**Special JS feature or syntax:**

None are explicitly used in this benchmark. The tests focus on basic arithmetic operations without leveraging any advanced JavaScript features.

**Other alternatives:**

To further optimize multiplication performance, alternative approaches could include:

1. **Caching**: Store the result of previous multiplications to avoid recalculating.
2. **Loop unrolling**: Optimize loops for better execution speed by reordering or eliminating unnecessary iterations.
3. **SIMD instructions**: Utilize SIMD (Single Instruction, Multiple Data) instructions, if available, to perform simultaneous calculations.
4. **Precomputation**: Precompute multiplication results and store them in a cache to avoid recalculating.

Keep in mind that these alternatives might require more complex code changes and may not always result in improved performance.

I hope this explanation helps you understand the benchmark and its tests!

Related benchmarks:

mutiplyyyyyy (version: 0)

Comparing performance of: a vs b vs c vs d

Created: 3 years ago by: Guest

Jump to the latest result

a

b

c

d

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):