Benchmark: reuse args - MeasureThat.net

Script Preparation code:

var scope = {
    _: {
        _: {
            _: {
                _: {
                    _: {
                        _: {

                        }
                    }
                }
            }
        }
    }
};

function getOwnerScope(scope, level) {
    let ownerScope = scope._;
    for (let i = 1; i < level; i++) ownerScope = ownerScope._;
    return ownerScope;
}

function getOwnerScopeReuse(scope, level) {
    for (; level--;) scope = scope._;
    return scope;
}

Tests:

getOwnerScope
getOwnerScope(scope, 5);
getOwnerScopeReuse
getOwnerScopeReuse(scope, 5);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
getOwnerScope
getOwnerScopeReuse

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 dive into the world of JavaScript microbenchmarks on MeasureThat.net.

**Benchmark Definition**

The provided JSON represents a benchmark definition for two test cases: `getOwnerScope` and `getOwnerScopeReuse`. The benchmark measures the performance difference between two approaches to retrieve the owner scope of an object in a nested context.

The benchmark definition includes:

* A script preparation code that defines a nested object structure, `scope`, with multiple levels of nesting.
* Two functions:
	+ `getOwnerScope(scope, level)`: Recursively traverses the `scope` object from top to bottom to retrieve the owner scope at a specified `level`.
	+ `getOwnerScopeReuse(scope, level)`: Reuses the `scope` object by decrementing its internal property until it reaches the desired level.
* A description of the benchmark is not provided.

**Options Compared**

The two test cases compare the performance of:

1. **Recursive approach**: `getOwnerScope(scope, 5)`
	* This approach uses a recursive function to traverse the nested object structure. The function calls itself for each level of nesting until it reaches the desired scope.
2. **Reusing the scope**: `getOwnerScopeReuse(scope, 5)`
	* This approach reuses the `scope` object by decrementing its internal property until it reaches the desired level.

**Pros and Cons**

**Recursive Approach:**

Pros:

* Easy to understand and implement
* Can handle large nested objects

Cons:

* Inefficient due to recursive function calls
* May lead to stack overflow for very deep nesting

**Reusing the Scope:**

Pros:

* More efficient since it avoids recursive function calls
* Reduces memory allocation and deallocation overhead

Cons:

* Requires more complex code to manage scope reuse
* May not be as straightforward to understand and implement

**Other Considerations**

* The benchmark measures the performance difference between the two approaches. A higher execution count per second indicates better performance.
* The `scope` object is defined with multiple levels of nesting, which affects the performance of both test cases.

**Libraries and Special Features**

None of the provided code uses any external libraries or special JavaScript features (e.g., async/await, Promises). However, it's worth noting that some modern browsers may have optimizations or built-in support for certain operations (e.g., string interpolation).

**Alternatives**

To measure similar performance characteristics, you might consider alternative approaches:

* **Iterative approach**: Instead of recursive function calls, use a loop to traverse the nested object structure.
* **Use of internal methods**: Implement a custom method on the `scope` object that allows for faster traversal and reuse.

Keep in mind that these alternatives would require significant changes to the benchmark code and may not be as straightforward to implement.

Related benchmarks:

reuse args (version: 0)

Comparing performance of: getOwnerScope vs getOwnerScopeReuse

Created: 3 years ago by: Registered User

Jump to the latest result

getOwnerScope

getOwnerScopeReuse

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):