SMB-SMB2 Service Performance
The SMB/SMB2 Service Performance view Layout for Charts provides a summary of the top SMB command types in a set of trace results, the number of calls made by each command, along with the minimum, average, and maximum values for the service response time and elapsed time for each command. The summary information is provided as tabular data in the grid visualizer format and contains the following columns of information:
Type — specifies the SMB/SMB2 command type by name, for example
SMB2.VirtualOperations.Create.Calls — specifies the number of calls made by each SMB/SMB2 command type.
Avg SRT — averages the ResponseTime across all calls made by each different command type, for example
SMB2.VirtualOperations.Read,SMB2.VirtualOperations.Write, and so on.The service response time (SRT) is the time differential between an SMB request sent to a server and the first server response to that request, as measured by the ResponseTime global annotation that is found in Field Chooser. A long SRT can be an indication of a slowly responding server application.
Min SRT — indicates the minimum response time detected across all calls made by each different command type.
Max SRT — indicates the maximum response time detected across all calls made by each different command type
Avg Elapsed Time — averages the elapsed time across all calls made by each different command type, for example,
SMB2.VirtualOperations.Close,SMB2.VirtualOperations.QueryInfo, and so on.The elapsed time is the time differential between an SMB request sent to a server and the last response to that request, which signals that all message fragments associated with the operation have been received by the requesting computer. A relatively long elapsed time value for an operation can be an indication of possible network latency issues.
Min Elapsed — indicates the minimum elapsed time detected across all calls made by each different command type.
Max Elapsed — indicates the maximum elapsed time detected across all calls made by each different command type
Using the SMB/SMB2 Service Performance Layout
To maximize the use of the SMB/SMB2 Service Performance view Layout, the SMB/SMB2 Viewpoint is set by default for this Layout in the Viewpoints drop-down list on the Filtering toolbar. This enables you to view your data from the perspective of the SMB/SMB2 protocol with no layers above it. This also helps you to further isolate the SMB/SMB2 command data along with the associated service response time and elapsed time values, which can provide the previously specified troubleshooting indications.