coderef

EXT_disjoint_timer_query WebGL extensionLimited availability

The EXT_disjoint_timer_query extension for WebGL 1.0 contexts measures the duration of a set of GL commands, without stalling the rendering pipeline.

Not yet supported in all major browsers — check the table and provide a fallback.

How to use ↓Compare browsers

Browser support

DesktopChrome
✕Not supportedup to 155
Current: 155
Edge
✕Not supportedup to 154
Current: 154
Firefox
✕Not supportedup to 157
Current: 157
Safari
✕Not supportedup to 27
Current: 27
MobileChrome Android
✕Not supportedup to 155
Current: 155
Firefox Android
✕Not supportedup to 157
Current: 157
Safari iOS
✕Not supportedup to 27
Current: 27

How to use

Not supported in Chrome, Edge, Firefox, Safari, Chrome Android, Firefox Android, Safari iOS. Use feature detection below and provide a fallback (or a polyfill) for those browsers.

Example

Full syntax and examples are on MDN: EXT disjoint timer query.

Feature detection

JS · check before using
if ("EXT_disjoint_timer_query" in globalThis) {
  // EXT_disjoint_timer_query is available
} else {
  // load a polyfill or use a fallback
}

Documentation (MDN)

Specification

Sub-features

Support for each part of the feature (10). The overall table above shows when the whole feature works.

Sub-featureChromeEdgeFirefoxSafariChrome AndroidFirefox AndroidSafari iOS
EXT_disjoint_timer_query✕✕✕✕✕✕✕
EXT_disjoint_timer_query.beginQueryEXT✕✕✕✕✕✕✕
EXT_disjoint_timer_query.createQueryEXT✕✕✕✕✕✕✕
EXT_disjoint_timer_query.deleteQueryEXT✕✕✕✕✕✕✕
EXT_disjoint_timer_query.endQueryEXT✕✕✕✕✕✕✕
EXT_disjoint_timer_query.getQueryEXT✕✕✕✕✕✕✕
EXT_disjoint_timer_query.getQueryObjectEXT✕✕✕✕✕✕✕
EXT_disjoint_timer_query.isQueryEXT✕✕✕✕✕✕✕
EXT_disjoint_timer_query.queryCounterEXT✕✕✕✕✕✕✕
WebGLTimerQueryEXT✕✕✕✕✕✕✕