Benchmark: Object freeze - MeasureThat.net

Tests:

Freeze
var obj = Object.freeze( {} );
No freeze
var obj = {};

Historical Performance Data aggregated from 55 community runs

Desktop Results:

Chrome 40 runs

No freeze

179.4M/s

Freeze

22.4M/s

Fastest: No freeze (8.0x faster)

View exact numbers

✓ No freeze: 179,419,840 ops/sec
• Freeze: 22,372,626 ops/sec

Firefox 8 runs

No freeze

1492.1M/s

Freeze

28.5M/s

Fastest: No freeze (52.4x faster)

View exact numbers

✓ No freeze: 1,492,088,832 ops/sec
• Freeze: 28,456,964 ops/sec

Mobile Results:

Chrome 7 runs

No freeze

95.6M/s

Freeze

8.8M/s

Fastest: No freeze (10.9x faster)

View exact numbers

✓ No freeze: 95,559,640 ops/sec
• Freeze: 8,775,544 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Freeze
No freeze

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/137.0.0.0 Safari/537.36

Browser/OS: Chrome 137 on Mac OS X 10.15.7

View result in a separate tab

No freeze

261.4M/s

Freeze

38.7M/s

View exact numbers

Test name	Executions per second
✓ No freeze	261,370,976 Ops/sec
Freeze	38,664,244 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 its options.

**Benchmark Definition**

The benchmark definition is empty, meaning that it doesn't specify any particular scenario or comparison between different JavaScript engines. The script preparation code and HTML preparation code are also null, suggesting that the benchmark doesn't require any specific setup or configuration.

However, we can infer that the benchmark is designed to test the performance of object freezing in JavaScript.

**Individual Test Cases**

There are two individual test cases:

1. **Freeze**: This test case uses the `Object.freeze()` function to freeze an object and measures its performance.
2. **No Freeze**: This test case creates an empty object without freezing it, and measures its performance.

**Comparison of Options**

The main option being compared is the presence or absence of object freezing. The pros and cons of these approaches are:

* **Object Freezing (Freeze)**:
	+ Pros: Can prevent certain types of mutations (e.g., assigning new properties to an existing property) that might affect performance.
	+ Cons: Can lead to slower execution times when working with large objects, as the engine needs to perform additional checks and validation.
* **No Object Freezing (No Freeze)**:
	+ Pros: Typically faster execution times, as the engine doesn't need to perform additional checks and validation.
	+ Cons: May allow certain types of mutations that could affect performance.

**Library and Special JS Feature**

There is no specific library mentioned in the benchmark definition or test cases. However, it's worth noting that object freezing uses a built-in JavaScript feature: `Object.freeze()`. This function was introduced in ECMAScript 2015 (ES6) to provide a way to freeze an object, making it immutable.

**Other Considerations**

When designing benchmarks like this, it's essential to consider the following:

* **Relevance**: Is the benchmark relevant to the use case or scenario being tested?
* **Scalability**: Can the benchmark be scaled up or down depending on the specific requirements?
* **Consistency**: Are the test cases consistent in terms of input data and execution environment?

**Alternatives**

Other alternatives for measuring object freezing performance might include:

1. Creating a large dataset of objects with various types of properties (e.g., numbers, strings, arrays) to measure the impact of object freezing on performance.
2. Using a different JavaScript engine or implementation that doesn't support object freezing, to compare its performance with that of the current engine.
3. Adding more test cases to cover different scenarios, such as:
	* Creating an object and then freeing it multiple times.
	* Modifying properties on an already frozen object.
	* Freezing a nested object.

By considering these alternatives and refining the benchmark definition, you can create a more comprehensive and accurate representation of object freezing performance in JavaScript.

Object freeze (version: 0)

Comparing performance of: `Freeze vs No freeze`

Created: 9 years ago by: Guest

Go to the latest result

Freeze

No freeze

Historical Performance Data aggregated from 55 community runs

Desktop Results:

Chrome 40 runs

Firefox 8 runs

Mobile Results:

Chrome 7 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

Object freeze (version: 0)

Comparing performance of: Freeze vs No freeze

Created: 9 years ago by: Guest

Go to the latest result

Freeze

No freeze

Historical Performance Data aggregated from 55 community runs

Desktop Results:

Chrome 40 runs

Firefox 8 runs

Mobile Results:

Chrome 7 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

Related benchmarks

Comparing performance of: `Freeze vs No freeze`