我正在捕获 ADO.Net 诊断 ETW，如中所述SQL Server 2008 中的数据访问跟踪。设置有效，生成了一个 ETL 文件，如果我使用，例如，我可以看到 ADO.Net 跟踪tracerpt:
System.Data, TextA, 0, 0, 0, 0, 17, 0, 0x0000000000000000, 0x000007D0, 0x00003A64, 1, , , {00000000-0000-0000-0000-000000000000}, , 131485096603462277, 450, 2400, 2, "enter_01 <prov.DbConnectionHelper.CreateDbCommand|API> 1# "
System.Data, TextA, 0, 0, 0, 0, 17, 0, 0x0000000000000000, 0x000007D0, 0x00003A64, 1, , , {00000000-0000-0000-0000-000000000000}, , 131485096603469806, 450, 2400, 2, "<sc.SqlCommand.set_Connection|API> 1#, 1# "
System.Data, TextA, 0, 0, 0, 0, 17, 0, 0x0000000000000000, 0x000007D0, 0x00003A64, 1, , , {00000000-0000-0000-0000-000000000000}, , 131485096603469816, 450, 2400, 2, "leave_01 "
System.Data, TextA, 0, 0, 0, 0, 17, 0, 0x0000000000000000, 0x000007D0, 0x00003A64, 1, , , {00000000-0000-0000-0000-000000000000}, , 131485096603471294, 450, 2400, 2, "<sc.SqlCommand.set_CommandText|API> 1#, '"
System.Data, TextA, 0, 0, 0, 0, 17, 0, 0x0000000000000000, 0x000007D0, 0x00003A64, 1, , , {00000000-0000-0000-0000-000000000000}, , 131485096603474160, 450, 2400, 2, "select cast(serverproperty('EngineEdition') as int)"
System.Data, TextA, 0, 0, 0, 0, 17, 0, 0x0000000000000000, 0x000007D0, 0x00003A64, 1, , , {00000000-0000-0000-0000-000000000000}, , 131485096603474174, 450, 2400, 2, "' "
System.Data, TextA, 0, 0, 0, 0, 17, 0, 0x0000000000000000, 0x000007D0, 0x00003A64, 1, , , {00000000-0000-0000-0000-000000000000}, , 131485096603523068, 450, 2400, 2, "<sc.SqlCommand.ExecuteReader|INFO> 1#, Command executed as SQLBATCH. "
但是如果我将相同的 ETL 加载到WPA我认为捕获的事件没有任何有用的信息。显示该提供商的所有事件Event Name <Unknown>, Event Type Classic并且没有有关实际 ADO.Net 事件信息的信息（即 Tracerpt CSV 输出中最右边的列）：
Line #, Provider Name, Task Name, Type (Opcode/Type ), Opcode Name, Id, Process, Annotation, Event Name, Event Type, Message, Cpu, ThreadId, Message, UserDataLength, Time (s)
1, 914abde3-171e-c600-3348-c514171de148, <Unknown>, 17, , 0, Unknown, <Not Annotated>, <Unknown>, Classic, , 3, 14056, , 0, 22.877068496
2, 914abde3-171e-c600-3348-c514171de148, <Unknown>, 17, , 0, Unknown, <Not Annotated>, <Unknown>, Classic, , 0, 14056, , 0, 22.877265256
3, 914abde3-171e-c600-3348-c514171de148, <Unknown>, 17, , 0, Unknown, <Not Annotated>, <Unknown>, Classic, , 0, 14056, , 0, 22.877275482
4, 914abde3-171e-c600-3348-c514171de148, <Unknown>, 17, , 0, Unknown, <Not Annotated>, <Unknown>, Classic, , 0, 14056, , 0, 22.877276892
5, 914abde3-171e-c600-3348-c514171de148, <Unknown>, 17, , 0, Unknown, <Not Annotated>, <Unknown>, Classic, , 0, 14056, , 0, 22.877299460
6, 914abde3-171e-c600-3348-c514171de148, <Unknown>, 17, , 0, Unknown, <Not Annotated>, <Unknown>, Classic, , 0, 14056, , 0, 22.877301223
7, 914abde3-171e-c600-3348-c514171de148, <Unknown>, 17, , 0, Unknown, <Not Annotated>, <Unknown>, Classic, , 1, 13276, , 0, 23.061972110
8, 914abde3-171e-c600-3348-c514171de148, <Unknown>, 17, , 0, Unknown, <Not Annotated>, <Unknown>, Classic, , 1, 13276, , 0, 23.061975636
9, 914abde3-171e-c600-3348-c514171de148, <Unknown>, 17, , 0, Unknown, <Not Annotated>, <Unknown>, Classic, , 1, 13276, , 0, 23.062004550
10, 914abde3-171e-c600-3348-c514171de148, <Unknown>, 17, , 0, Unknown, <Not Annotated>, <Unknown>, Classic, , 1, 13276, , 0, 23.063588859
11, 914abde3-171e-c600-3348-c514171de148, <Unknown>, 17, , 0, Unknown, <Not Annotated>, <Unknown>, Classic, , 1, 13276, , 0, 23.063617421
由于我捕获的所有其他数据都可以在 WPA 中进行分析，我想知道 ADO.Net 诊断提供程序有何不同，事件对 WPA 如此不透明？
Windows 性能分析器从注册表读取清单数据来解码事件。如果 WPA 无法获取数据，它仅显示提供商的 GUID<Unknown>对于任务名称和事件名称。那些托管对象格式 (MOF) 文件WPA（经典、遗留提供商）不支持 ADO 跟踪的哪些内容，但看起来像tracerpt.exe确实支持。
对于仅查找事件的 ETL 文件的原始分析，我建议Perfview.
它有自己的解析器来获取解码事件：
<Event MSec= "26176,0393" PID="11304" PName="foo" TID="8336" EventName="AdoNetDiag/TextW"
TimeStamp="09.02.17 16:47:39.338496" ID="Illegal" Version="0" Keywords="0x00000000" TimeStampQPC="1.241.241.278.025"
Level="Always" ProviderName="Bid2Etw_ADONETDIAG_ETW" ProviderGuid="7acdcac8-8947-f88a-e51a-24018f5129ef" ClassicProvider="True"
Opcode="18" TaskGuid="7acdcac9-8947-f88a-e51a-24018f5129ef" Channel="0" PointerSize="4"
CPU="1" EventIndex="1328680" TemplateType="DynamicTraceEventData">
<PrettyPrint>
<Event MSec= "26176,0393" PID="11304" PName="foo" TID="8336" EventName="AdoNetDiag/TextW" ProviderName="Bid2Etw_ADONETDIAG_ETW" ModID="0" msgStr="01:CONNECTED [526D0000]C:\Windows\Microsoft.Net\assembly\GAC_32\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll "System.Data.SNI.1" {C9996FA5-C06F-F20C-8A20-69B3BA392315}
"/>
</PrettyPrint>
因此，使用 WPA 对 CPU、磁盘、文件 io 和事件的 Perfview 进行性能分析。