Benchmark: Chimic - MeasureThat.net

HTML Preparation code:

<canvas id='master' width='100' height='100'></canvas>
<canvas id='pid' width='100' height='100'></canvas>
<canvas id='di' width='100' height='100'></canvas>

Script Preparation code:

var master = document.getElementById('master');
var masterctx = master.getContext('2d');
var pid = document.getElementById('pid').getContext('2d');
var di = document.getElementById('di').getContext('2d');

masterctx.fillRect(0,0,50,50);
masterctx.fillStyle = "red";
masterctx.fillRect(50,50,100,100);
var imgData = masterctx.getImageData(0,0,100,100);

Tests:

di
di.drawImage(master,0,0);
pid
pid.putImageData(imgData,0,0);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
di
pid

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!

The provided JSON represents a benchmark test case on MeasureThat.net, which measures the performance of two specific JavaScript operations: `di.drawImage()` and `pid.putImageData()`. These operations are used to draw images on 2D canvases.

**Benchmark Definition**

The first part of the JSON defines the overall benchmark:

* "Name": "Chimic"
* "Description": null
* "Script Preparation Code": This code sets up the necessary variables and canvases for drawing.
	+ `var master = document.getElementById('master');` retrieves a `<canvas>` element with the ID "master".
	+ `var masterctx = master.getContext('2d');` gets the 2D drawing context of the "master" canvas.
	+ `var pid = document.getElementById('pid').getContext('2d');` and `var di = document.getElementById('di').getContext('2d');` get the 2D drawing contexts of the "pid" and "di" canvases, respectively.
* "Html Preparation Code": This code defines the HTML structure for the three `<canvas>` elements used in the script preparation code.

**Individual Test Cases**

The second part of the JSON defines two individual test cases:

1. `di.drawImage(master,0,0);`
	* This operation draws an image on the "master" canvas at position (0, 0).
2. `pid.putImageData(imgData,0,0);`
	* This operation puts a piece of image data onto the "pid" canvas at position (0, 0).

**Options Compared**

The two test cases compare the performance of `di.drawImage()` and `pid.putImageData()`. These operations are both used to draw images on canvases, but they have different approaches:

1. **`di.drawImage()`**: This operation draws an image directly onto a canvas using the 2D drawing context. It takes the image data, x-coordinate, y-coordinate, width, height, and source rectangle as arguments.
2. **`pid.putImageData()`**: This operation puts a piece of image data onto a canvas using the `putImageData()` method. It takes the image data, destination rectangle (x-coordinate, y-coordinate, width, height), and optional source rectangle and scaling factors.

**Pros and Cons**

Here are some pros and cons for each approach:

* **`di.drawImage()`**:
	+ Pros: Generally faster since it uses native 2D drawing operations.
	+ Cons: May not be as flexible or customizable as `putImageData()`.
* **`pid.putImageData()`**:
	+ Pros: More flexible and customizable, especially when working with complex image processing tasks.
	+ Cons: May be slower due to the additional overhead of copying image data.

**Library**

There is no explicit library used in these benchmark test cases. However, `getById()` and `getContext()` are built-in DOM methods that return elements or contexts, respectively.

**Special JS Feature/Syntax**

None of the provided JavaScript code uses any special features or syntax, such as async/await, promises, or modern JavaScript modules (e.g., ES6 imports/export).

**Alternatives**

Some alternative approaches to measuring JavaScript performance include:

* Using `performance.now()` to measure execution time.
* Creating a simple test harness using a testing library like Jest or Mocha.
* Utilizing a profiler tool like Chrome DevTools' Profiler.

Keep in mind that the choice of approach depends on the specific use case and requirements. MeasureThat.net's microbenchmarking framework provides a convenient way to compare the performance of specific JavaScript operations, making it easier for developers to identify performance bottlenecks in their code.

Related benchmarks:

Chimic (version: 0)

Comparing performance of: di vs pid

Created: 3 years ago by: Guest

Jump to the latest result

di

pid

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):