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Add ETDump tracing to CpuBackend (#23926) - #23926
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🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/23926
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CpuBackendCpuBackend (#23926)
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Summary: `CPUPlan` records one ETDump delegate event per step, named `provider/implementation:first_node[+N]`, so every provider is traced without provider changes. The XNNPACK provider enables XNNPACK runtime profiling when a tracer is attached and logs `XNNPACK:<operator> #<n>` events inside its step, with each operator's input and output shapes as JSON delegate metadata. Shapes come from XNNPACK's internal runtime (`src/xnnpack/subgraph.h`). That header dependency and the code that reads it are only compiled when `ET_EVENT_TRACER_ENABLED` is defined. `runner` writes an ETDump when `ET_CPU_ETDUMP` is set. Authored with Claude Code. Differential Revision: D125525223
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Summary: `CPUPlan` records one ETDump delegate event per step, named `provider/implementation:first_node[+N]`, so every provider is traced without provider changes. The XNNPACK provider enables XNNPACK runtime profiling when a tracer is attached and logs `XNNPACK:<operator> #<n>` events inside its step, with each operator's input and output shapes as JSON delegate metadata. Shapes come from XNNPACK's internal runtime (`src/xnnpack/subgraph.h`). That header dependency and the code that reads it are only compiled when `ET_EVENT_TRACER_ENABLED` is defined. `runner` writes an ETDump when `ET_CPU_ETDUMP` is set. Authored with Claude Code. Differential Revision: D125525223
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Summary: `CPUPlan` records one ETDump delegate event per step, named `provider/implementation:first_node[+N]`, so every provider is traced without provider changes. The XNNPACK provider enables XNNPACK runtime profiling when a tracer is attached and logs `XNNPACK:<operator> #<n>` events inside its step, with each operator's input and output shapes as JSON delegate metadata. Shapes come from XNNPACK's internal runtime (`src/xnnpack/subgraph.h`). That header dependency and the code that reads it are only compiled when `ET_EVENT_TRACER_ENABLED` is defined. `runner` writes an ETDump when `ET_CPU_ETDUMP` is set. Authored with Claude Code. Differential Revision: D125525223
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Summary: `CPUPlan` records one ETDump delegate event per step, named `provider/implementation:first_node[+N]`, so every provider is traced without provider changes. The XNNPACK provider enables XNNPACK runtime profiling when a tracer is attached and logs `XNNPACK:<operator> #<n>` events inside its step, with each operator's input and output shapes as JSON delegate metadata. Shapes come from XNNPACK's internal runtime (`src/xnnpack/subgraph.h`). That header dependency and the code that reads it are only compiled when `ET_EVENT_TRACER_ENABLED` is defined. `runner` writes an ETDump when `ET_CPU_ETDUMP` is set. Authored with Claude Code. Differential Revision: D125525223
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Summary:
CPUPlanrecords one ETDump delegate event per step, namedprovider/implementation:first_node[+N], so every provider is traced without provider changes. The XNNPACK provider enables XNNPACK runtime profiling when a tracer is attached and logsXNNPACK:<operator> #<n>events inside its step, with each operator's input and output shapes as JSON delegate metadata.Shapes come from XNNPACK's internal runtime (
src/xnnpack/subgraph.h). That header dependency and the code that reads it are only compiled whenET_EVENT_TRACER_ENABLEDis defined.runnerwrites an ETDump whenET_CPU_ETDUMPis set.Authored with Claude Code.
Differential Revision: D125525223