HTTP/2 的详细信息

当 performanceEntry.type 等于 'http2' 时，则 performanceEntry.detail 属性将是包含附加性能信息的 <Object>。

如果 performanceEntry.name 等于 Http2Stream，则 detail 将包含以下属性：

  • bytesRead <number> 为此 Http2Stream 接收的 DATA 帧字节数。
  • bytesWritten <number> 为此 Http2Stream 发送的 DATA 帧字节数。
  • id <number> 关联 Http2Stream 的标识符
  • timeToFirstByte <number> 从 PerformanceEntry startTime 到接收到第一个 DATA 帧之间经过的毫秒数。
  • timeToFirstByteSent <number> 从 PerformanceEntry startTime 到发送的第一个 DATA 帧之间经过的毫秒数。
  • timeToFirstHeader <number> 从 PerformanceEntry startTime 到接收到第一个标头之间经过的毫秒数。

如果 performanceEntry.name 等于 Http2Session，则 detail 将包含以下属性：

  • bytesRead <number> 为此 Http2Session 接收的字节数。
  • bytesWritten <number> 为此 Http2Session 发送的字节数。
  • framesReceived <number> Http2Session 接收到的 HTTP/2 帧数。
  • framesSent <number> Http2Session 发送的 HTTP/2 帧数。
  • maxConcurrentStreams <number> Http2Session 生命周期内同时打开的最大流数。
  • pingRTT <number> 从发送 PING 帧到接收到它的确认所经过的毫秒数。 只有在 Http2Session 上发送了 PING 帧时才会出现。
  • streamAverageDuration <number> 所有 Http2Stream 实例的平均持续时间（以毫秒为单位）
  • streamCount <number> Http2Session 处理的 Http2Stream 实例的数量。
  • type <string> 'server' 或 'client' 来标识 Http2Session 的类型。

When performanceEntry.type is equal to 'http2', the performanceEntry.detail property will be an <Object> containing additional performance information.

If performanceEntry.name is equal to Http2Stream, the detail will contain the following properties:

  • bytesRead <number> The number of DATA frame bytes received for this Http2Stream.
  • bytesWritten <number> The number of DATA frame bytes sent for this Http2Stream.
  • id <number> The identifier of the associated Http2Stream
  • timeToFirstByte <number> The number of milliseconds elapsed between the PerformanceEntry startTime and the reception of the first DATA frame.
  • timeToFirstByteSent <number> The number of milliseconds elapsed between the PerformanceEntry startTime and sending of the first DATA frame.
  • timeToFirstHeader <number> The number of milliseconds elapsed between the PerformanceEntry startTime and the reception of the first header.

If performanceEntry.name is equal to Http2Session, the detail will contain the following properties:

  • bytesRead <number> The number of bytes received for this Http2Session.
  • bytesWritten <number> The number of bytes sent for this Http2Session.
  • framesReceived <number> The number of HTTP/2 frames received by the Http2Session.
  • framesSent <number> The number of HTTP/2 frames sent by the Http2Session.
  • maxConcurrentStreams <number> The maximum number of streams concurrently open during the lifetime of the Http2Session.
  • pingRTT <number> The number of milliseconds elapsed since the transmission of a PING frame and the reception of its acknowledgment. Only present if a PING frame has been sent on the Http2Session.
  • streamAverageDuration <number> The average duration (in milliseconds) for all Http2Stream instances.
  • streamCount <number> The number of Http2Stream instances processed by the Http2Session.
  • type <string> Either 'server' or 'client' to identify the type of Http2Session.