Limited Availability Compute pressure

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.

Baseline Status: This feature is currently Limited (not yet Baseline). Latest engine implementation shipped on May 17, 2024.

Desktop Browser Engine Support

Google Chrome

125

Supported

Mozilla Firefox

—

Unsupported

Apple Safari

—

Unsupported

Microsoft Edge

125

Supported

Mobile Browser Engine Support

Chrome Android

—

Firefox Android

—

Safari iOS

—

Specifications and References

Specification ↗ Feature XML ↗

MDN Browser Compat Data Keys:

api.PressureObserver ↗ api.PressureObserver.PressureObserver ↗ api.PressureObserver.disconnect ↗ api.PressureObserver.knownSources_static ↗ api.PressureObserver.observe ↗ api.PressureObserver.takeRecords ↗ api.PressureObserver.unobserve ↗ api.PressureRecord ↗ api.PressureRecord.source ↗ api.PressureRecord.state ↗ api.PressureRecord.time ↗ api.PressureRecord.toJSON ↗ html.elements.iframe.allow.compute-pressure ↗ http.headers.Permissions-Policy.compute-pressure ↗