Performance.setResourceTimingBufferSize()

我们的志愿者还没有将这篇文章翻译为 中文 (简体)加入我们帮助完成翻译
您也可以阅读此文章的English (US)版。

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 set_resource_timing_buffer_size(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 AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic supportChrome Full support 46
Full support 46
No support ? — 57
Prefixed
Prefixed Requires the vendor prefix: webkit
Edge Full support YesFirefox Full support YesIE Full support YesOpera Full support YesSafari No support NoWebView Android Full support 46
Full support 46
No support ? — 57
Prefixed
Prefixed Requires the vendor prefix: webkit
Chrome Android Full support 46
Full support 46
No support ? — 57
Prefixed
Prefixed Requires the vendor prefix: webkit
Edge Mobile Full support YesFirefox 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.

文档标签和贡献者

此页面的贡献者: fscholz, chrisdavidmills, jpmedley, abbycar, rolfedh, AFBarstow
最后编辑者: fscholz,