Web platform features explorer - CPU compute pressure

The PressureObserver API monitors CPU load, allowing you to adjust workloads in response to available computing resources. Also known as the Compute Pressure API.

Status

Limited availability

This feature received a negative standards position from at least one browser vendor. It's very unlikely to ever become Baseline in this current form.

MDN documentation

Compute Pressure API

Specifications

Compute Pressure Level 1, from Devices and Sensors Working Group (W3C).

Browser support

Chrome 125 Released on 2024-05-14
Chrome Android ❌
Edge 125 Released on 2024-05-17
Firefox ❌ Vendor position : unknown
Firefox for Android ❌ Vendor position : unknown
Safari ❌ Vendor position : oppose (concerns: privacy, device independence)
Safari on iOS ❌ Vendor position : oppose (concerns: privacy, device independence)

Usage (according to Chrome Platform Status)

~0.175% of page loads. More data at chromestatus.

Web Platform Tests (WPT)

View the latest WPT test results for this feature

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