Benchmark: drawImage() scaling up performance

Script Preparation code:

$sourceWidth = 100;
$sourceHeight = 100;
$sourceCanvas = document.createElement("canvas");
$sourceCanvas.width = $sourceWidth;
$sourceCanvas.height = $sourceHeight;
$sourceContext = $sourceCanvas.getContext("2d");
$sourceContext.fillStyle = "rgba(0,100,200,1)";
$sourceContext.fillRect(0, 0, $sourceWidth, $sourceHeight);

$destCanvas = document.createElement("canvas");
$destCanvas.width = 3000;
$destCanvas.height = 3000;
$destContext = $destCanvas.getContext("2d");

Tests:

Scaling from a small canvas area to a small canvas area (no scaling)
$destContext.drawImage($sourceCanvas, 0, 0, $sourceWidth, $sourceHeight, 0, 0, $sourceWidth, $sourceHeight); // Force the drawImage call to be evaluated within this benchmark code: $destContext.getImageData(0, 0, 1, 1);
Scaling from a small canvas area to a medium canvas area
$destContext.drawImage($sourceCanvas, 0, 0, $sourceWidth, $sourceHeight, 0, 0, 600, 600); // Force the drawImage call to be evaluated within this benchmark code: $destContext.getImageData(0, 0, 1, 1);
Scaling from a small canvas area to a large canvas area
$destContext.drawImage($sourceCanvas, 0, 0, $sourceWidth, $sourceHeight, 0, 0, 3000, 3000); // Force the drawImage call to be evaluated within this benchmark code: $destContext.getImageData(0, 0, 1, 1);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Scaling from a small canvas area to a small canvas area (no scaling)
Scaling from a small canvas area to a medium canvas area
Scaling from a small canvas area to a large canvas area

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 6 days ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Browser/OS: Chrome 124 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Scaling from a small canvas area to a small canvas area (no scaling)	154.7 Ops/sec
Scaling from a small canvas area to a medium canvas area	930.3 Ops/sec
Scaling from a small canvas area to a large canvas area	45.7 Ops/sec

drawImage() scaling up performance (version: 2)

Comparing performance of: Scaling from a small canvas area to a small canvas area (no scaling) vs Scaling from a small canvas area to a medium canvas area vs Scaling from a small canvas area to a large canvas area

Created: 3 years ago by: Registered User

Jump to the latest result

Scaling from a small canvas area to a small canvas area (no scaling)

Scaling from a small canvas area to a medium canvas area

Scaling from a small canvas area to a large canvas area

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A