performance.setResourceTimingBufferSize()

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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 1
The definition of 'setResourceTimingBufferSize()' in that specification.
Candidate Recommendation Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
setResourceTimingBufferSizeChrome Full support 46
Full support 46
No support 22 — 57
Prefixed
Prefixed Implemented with the vendor prefix: webkit
Edge Full support 12Firefox Full support YesIE Full support YesOpera Full support YesSafari Full support 11WebView 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 YesOpera Android Full support YesSafari iOS No support NoSamsung Internet Android ?

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Requires a vendor prefix or different name for use.
Requires a vendor prefix or different name for use.

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