Benchmark: Proxy JS Get Benchmark Multiple InheritanceFix4

Script Preparation code:

function multiInherit (p1,p2) {
  return Object.create(new Proxy(Object.create(null), {
    get (target, prop, receiver) {
      return p1[prop] || p2[prop]
    }
  }));
}

var o1 = {value:1}
var o2 = {value2:2}
var obj = multiInherit(o1, o2);

Tests:

o1
o1.value;
o2
o2.value
Proxy
obj.value2

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
o1
o2
Proxy

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Browser/OS: Chrome 126 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
o1	28827338.0 Ops/sec
o2	28422342.0 Ops/sec
Proxy	20456202.0 Ops/sec

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 it tests, along with the pros and cons of different approaches.

**Benchmark Overview**

The benchmark is designed to test the performance of getting properties from an object created using JavaScript's Proxy mechanism, specifically in a scenario where multiple inheritance is used. The benchmark defines a function `multiInherit` that creates a new proxy object by combining two existing objects (`o1` and `o2`) using the `Object.create(new Proxy(...))` syntax.

**Test Cases**

There are three test cases:

1. `o1.value;`
2. `o2.value;`
3. `obj.value2;`

These test cases are designed to measure the performance of getting properties from the created proxy object (`obj`) in each of these scenarios:

* Getting a property directly on `o1` or `o2`.
* Getting a property on the proxy object `obj`.

**Library and Features**

The benchmark uses the following library and feature:

* JavaScript's Proxy mechanism, which allows creating objects with custom access control.

**Approaches and Performance Considerations**

There are two primary approaches to implementing this benchmark:

1. **Direct Property Access**: Accessing properties directly on `o1` or `o2`, which is the most straightforward approach.
	* Pros:
		+ Easy to implement and understand.
		+ Fastest possible access time, as it doesn't involve any function calls or indirections.
	* Cons:
		+ May not accurately represent real-world scenarios where property access is often mediated by some form of indirection (e.g., getter/setter functions).
2. **Proxy-Induced Indirection**: Accessing properties through the proxy object `obj`, which introduces an extra layer of indirection.
	* Pros:
		+ More closely represents real-world scenarios where property access is often mediated by some form of indirection.
	* Cons:
		+ Introduces additional overhead due to function calls and indirections.

**Other Alternatives**

If you wanted to modify the benchmark to explore other approaches, here are a few options:

1. **Use a different proxy implementation**: Experiment with different implementations of the `Proxy` mechanism, such as using `Object.create(null)` instead of creating a new object.
2. **Add additional complexity**: Introduce more complex scenarios, such as nested proxies or multiple levels of indirection, to further test the performance and robustness of the benchmark.
3. **Use a different access control model**: Instead of using a proxy object, use a library like `access-control` or implement your own custom access control mechanism.

Keep in mind that modifying the benchmark should be done with caution, as it may affect its accuracy and relevance to real-world scenarios.

Related benchmarks:

Proxy JS Get Benchmark Multiple InheritanceFix4 (version: 4)

Comparing performance of: o1 vs o2 vs Proxy

Created: one year ago by: Registered User

Jump to the latest result

o1

o2

Proxy

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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