Benchmark: push / shift 2 - MeasureThat.net

Script Preparation code:

var arrays = [2, 3, 4, 5, 6, 7].reduce((acc, pow) => {
  const array = [];
  const length = Math.pow(10, pow);
  
  for(let i=0; i < length; i++) {
    array.push({ i });
  }
 
  acc[pow] = array;
  
  return acc;
}, {});

var array2 = arrays[2];
var array3 = arrays[3];
var array4 = arrays[4];
var array5 = arrays[5];
var array6 = arrays[6];
var array7 = arrays[7];

Tests:

10 ^ 2
array2.push({x: 1}); array2.shift();
10 ^ 3
array3.push({x: 1}); array3.shift();
10 ^ 4
array4.push({x: 1}); array4.shift();
10 ^ 5
array5.push({x: 1}); array5.shift();
10 ^ 6
array6.push({x: 1}); array6.shift();
10 ^ 7
array7.push({x: 1}); array7.shift();

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
10 ^ 2
10 ^ 3
10 ^ 4
10 ^ 5
10 ^ 6
10 ^ 7

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 23 days ago):

LLMs can make mistakes. Check important info.

I'll provide an explanation of the benchmark, its options, pros and cons, and other considerations.

**Benchmark Definition**

The benchmark definition is a JSON object that describes the test case. In this case, there are six test cases, each with a different power of 10 (10^2 to 10^7). The script preparation code generates an array with a specific length for each test case, and then performs two operations on the array: pushing and shifting.

**Script Preparation Code**

The script preparation code is responsible for generating the arrays and preparing them for testing. In this case, it uses the `reduce` method to create an object that maps powers of 10 to arrays with a specific length. The `push` operation adds elements to the end of each array, while the `shift` operation removes the first element from each array.

**Html Preparation Code**

The html preparation code is empty in this case, which means that no HTML content is generated for testing.

**Options Compared**

In this benchmark, two options are compared:

1. **Push and Shift**: This option compares the performance of pushing elements to an array versus shifting elements off the end of an array.
2. **Array Size**: The benchmark tests different sizes of arrays (10^2 to 10^7) to see how it affects performance.

**Pros and Cons**

**Push Operation**

* Pros:
	+ Can be more efficient than shifting for large arrays, as it avoids the overhead of removing elements from the beginning of the array.
	+ Allows for faster insertion of new elements.
* Cons:
	+ Can lead to memory fragmentation if not implemented carefully.
	+ May incur additional overhead due to resizing the underlying array.

**Shift Operation**

* Pros:
	+ Avoids memory fragmentation issues, as it removes elements from the end of the array.
	+ Involves less overhead compared to pushing, as only a single element needs to be removed.
* Cons:
	+ Slower for large arrays, as it involves removing elements from the beginning of the array.

**Array Size**

* Pros:
	+ Allows for testing of different scenarios with varying numbers of elements.
	+ Helps identify performance issues related to array size.
* Cons:
	+ May not be representative of real-world use cases, where array sizes are often fixed or variable.

**Other Considerations**

* **Browser and Device**: The benchmark results show that the browser (Chrome 116) and device platform (Desktop) used for testing have a significant impact on performance. Other browsers and devices may exhibit different behavior.
* **Operating System**: The operating system used for testing (Windows) may also affect performance, although this is not explicitly tested in this benchmark.

**Alternatives**

There are several alternatives to this benchmark that could be used to test similar scenarios:

1. **Benchmarking libraries**: Libraries like Benchmark.js or Microbenchmark can provide a more comprehensive and flexible way to write and run benchmarks.
2. **WebAssembly**: WebAssembly provides a platform for running performance-critical code, allowing developers to test their application's performance in a sandboxed environment.
3. **Native Instruments**: Native Instruments is a company that specializes in testing the performance of JavaScript engines on various platforms.

In summary, this benchmark tests the performance of pushing and shifting elements onto an array versus shifting elements off the end of an array, with varying array sizes to see how it affects performance. While there are pros and cons associated with each approach, this benchmark provides a starting point for understanding the trade-offs involved in optimizing array operations.

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36 Edg/116.0.1938.81

Browser/OS: Chrome 116 on Windows

View result in a separate tab

Test name	Executions per second
10 ^ 2	2895534.2 Ops/sec
10 ^ 3	3140150.5 Ops/sec
10 ^ 4	3161554.5 Ops/sec
10 ^ 5	8066.4 Ops/sec
10 ^ 6	923.4 Ops/sec
10 ^ 7	77.1 Ops/sec

Related benchmarks:

push / shift 2 (version: 0)

Comparing performance of: 10 ^ 2 vs 10 ^ 3 vs 10 ^ 4 vs 10 ^ 5 vs 10 ^ 6 vs 10 ^ 7

Created: 5 years ago by: Registered User

Jump to the latest result

10 ^ 2

10 ^ 3

10 ^ 4

10 ^ 5

10 ^ 6

10 ^ 7

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 23 days ago):