JIT Tracing ETW Events
These events collect information relating to the success or failure of just-in-time (JIT) inlining and JIT tail calls.
JIT Inlining Events
MethodJitInliningFailed Event
The following table shows the keyword and level. (For more information, see CLR ETW Keywords and Levels.)
| Keyword for raising the event | Level |
|---|---|
JITTracingKeyword (0x10) |
Verbose (5) |
The following table shows the event information.
| Event | Event ID | Raised when |
|---|---|---|
MethodJitInliningFailed |
186 | The JIT inlining failed. |
The following table shows the event data.
| Field name | Data type | Description |
|---|---|---|
| MethodBeingCompiledNamespace | win:UnicodeString | Namespace of the method that is being compiled. |
| MethodBeingCompiledName | win:UnicodeString | Name of the method that is being compiled. |
| MethodBeingCompiledNameSignature | win:UnicodeString | Signature of the method that is being compiled. |
| InlinerNamespace | win:UnicodeString | The namespace of the method the JIT compiler is trying to generate code for. |
| InlinerName | win:UnicodeString | The name of the method the compiler is attempting to generate code for. This might not be the same as MethodBeingCompiledName if the compiler is attempting to inline code into MethodBeingCompiledName instead of generating a call to InlinerName. |
| InlinerNameSignature | win:UnicodeString | The signature for the inliner. |
| InlineeNamespace | win:UnicodeString | The namespace of the inlinee. |
| InlineeName | win:UnicodeString | The method the compiler is trying to inline (not generate a call to). |
| InlineeNameSignature | win:UnicodeString | The signature for the inlinee. |
| FailAlways | win:Boolean | A hint to the JIT compiler that inlining will always fail for the inlinee. |
| FailReason | win:UnicodeString | INLINE_NEVER means a previous inlining attempt determined that inlining will never succeed for some other reason; otherwise, free-form text. |
| ClrInstanceID | win:UnicodeString | Unique ID for the instance of CLR or CoreCLR. |
MethodJitInliningSucceeded Event
The following table shows the keyword and level.
| Keyword for raising the event | Level |
|---|---|
JITTracingKeyword (0x10) |
Verbose (5) |
The following table shows the event information.
| Event | Event ID | Raised when |
|---|---|---|
MethodJitInliningSucceeded |
185 | The method inlining succeeded. |
The following table shows the event data.
| Field name | Data type | Description |
|---|---|---|
| MethodBeingCompiledNamespace | win:UnicodeString | The namespace of the method that is being compiled. |
| MethodBeingCompiledName | win:UnicodeString | The name of the method being that is compiled. |
| MethodBeingCompiledNameSignature | win:UnicodeString | The signature of the method that is being compiled. |
| InlinerNamespace | win:UnicodeString | The namespace of the method the JIT compiler is attempting to generate code for. |
| InlinerName | win:UnicodeString | The name of the method the compiler is attempting to generate code for. This might not be the same as MethodBeingCompiledName if the compiler is attempting to inline code into MethodBeingCompiledName instead of generating a call to InlinerName. |
| InlinerNameSignature | win:UnicodeString | The signature for the inliner. |
| InlineeNamespace | win:UnicodeString | The namespace of the inlinee. |
| InlineeName | win:UnicodeString | The method the compiler is trying to inline (not generate a call to). |
| InlineeNameSignature | win:UnicodeString | The signature for the inlinee. |
| ClrInstanceID | win:UInt16 | Unique ID for the instance of CLR or CoreCLR. |
JIT Tail Call Events
MethodJITTailCallFailed Event
The following table shows the keyword and level.
| Keyword for raising the event | Level |
|---|---|
JITTracingKeyword (0x10) |
Verbose (5) |
The following table shows the event information.
| Event | Event ID | Raised when |
|---|---|---|
MethodJitTailCallFailed |
189 | The method tail call failed. |
The following table shows the event data.
| Field name | Data type | Description |
|---|---|---|
| MethodBeingCompiledNamespace | win:UnicodeString | Namespace of the method that is being compiled. |
| MethodBeingCompiledName | win:UnicodeString | Name of the method that is being compiled. |
| MethodBeingCompiledNameSignature | win:UnicodeString | Signature of the method that is being compiled. |
| CallerNamespace | win:UnicodeString | The namespace of the method the JIT compiler is attempting to generate code for. |
| CallerName | win:UnicodeString | The name of the method the compiler is attempting to generate code for. |
| CallerNameSignature | win:UnicodeString | The signature for the caller. |
| CalleeNamespace | win:UnicodeString | The namespace of the callee. |
| CalleeName | win:UnicodeString | The method the compiler is trying to tail call (not generate a call to). |
| CalleeNameSignature | win:UnicodeString | The signature for the callee. |
| TailPrefix | win:Boolean | The prefix for the tail call |
| FailReason | win:UnicodeString | The reason the tail call failed. |
| ClrInstanceID | win:UInt16 | Unique ID for the instance of CLR or CoreCLR. |
MethodJITTailCallSucceeded Event
The following table shows the keyword and level.
| Keyword for raising the event | Level |
|---|---|
JITTracingKeyword (0x10) |
Verbose (5) |
The following table shows the event information.
| Event | Event ID | Raised when |
|---|---|---|
MethodJitTailCallSucceeded |
188 | The method tail call succeeded. |
The following table shows the event data.
| Field name | Data type | Description |
|---|---|---|
| MethodBeingCompiledNamespace | win:UnicodeString | Namespace of the method that is being compiled. |
| MethodBeingCompiledName | win:UnicodeString | Name of the method that is being compiled. |
| MethodBeingCompiledNameSignature | win:UnicodeString | Signature of the method that is being compiled. |
| CallerNamespace | win:UnicodeString | The namespace of the method the JIT compiler is attempting to generate code for. |
| CallerName | win:UnicodeString | The name of the method the compiler is attempting to generate code for. |
| CallerNameSignature | win:UnicodeString | The signature for the caller. |
| CalleeNamespace | win:UnicodeString | The namespace of the callee. |
| CalleeName | win:UnicodeString | The method the compiler is trying to tail call (not generate a call to). |
| CalleeNameSignature | win:UnicodeString | The signature for the callee. |
| TailPrefix | win:Boolean | The prefix for the tail call. |
| TailCallType | win:UnicodeString | The type of the tail call. |
| ClrInstanceID | win:UInt16 | Unique ID for the instance of CLR or CoreCLR. |
See also
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