Web/API/Performance/setResourceTimingBufferSize

The setResourceTimingBufferSize() method sets the browser's resource timing buffer size to the specified number of "resource" performance entry type objects.

A browser's recommended resource timing buffer size is at least 150 performance entry objects.

Note: This feature is available in Web Workers.

Syntax

performance.setResourceTimingBufferSize(maxSize);

Arguments

maxSize

A number representing the maximum number of performance entry objects the browser should hold in its performance entry buffer.

Return value

none

This method has no return value.

Example

function setResourceTimingBufferSize(maxSize) {
  if (performance === undefined) {
    log("Browser does not support Web Performance");
    return;
  }
  var supported = typeof performance.setResourceTimingBufferSize == "function";
  if (supported) {
    log("... Performance.setResourceTimingBufferSize() = Yes");
    performance.setResourceTimingBufferSize(maxSize);
  } else {
    log("... Performance.setResourceTimingBufferSize() = NOT supported");
  }
}

Specifications

Specification	Status	Comment
Resource Timing Level 1The definition of 'setResourceTimingBufferSize()' in that specification.	Candidate Recommendation	Initial definition.

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
setResourceTimingBufferSize	Chrome Full support 46 Full support 46 No support 22 — 57 Prefixed' Prefixed' Implemented with the vendor prefix: webkit	Edge Full support 12	Firefox Full support Yes	IE Full support Yes	Opera Full support Yes	Safari Full support 11	WebView Android Full support 46 Full support 46 No support ? — 57 Prefixed' Prefixed' Implemented with the vendor prefix: webkit	Chrome Android Full support 46 Full support 46 No support 25 — 57 Prefixed' Prefixed' Implemented with the vendor prefix: webkit	Firefox Android Full support Yes	Opera Android Full support Yes	Safari iOS No support No	Samsung Internet Android Full support 5.0 Full support 5.0 No support 1.5 — 7.0 Prefixed' Prefixed' Implemented with the vendor prefix: webkit

Legend

Full support  

Full support

No support  

No support

Requires a vendor prefix or different name for use.'

Requires a vendor prefix or different name for use.

performance.setResourceTimingBufferSize() by Mozilla Contributors is licensed under CC-BY-SA 2.5.