Baraldi, Giovanni
4ca156e572
* Adding test and samples to decoder
* Fix sample
* Formatting
* Fix multi test
* Disable sample
* Fix tests
* Format
* Version fix
* Locking the decoder
* Add atomic
* Review comments
* Format
* Adding readme
* merge conflict and adding PCS+ATT test
* Review comments
* Properly disable PCS test
* Update tests/rocprofv3/advanced-thread-trace/CMakeLists.txt
* Adding back env var test
* Name fix
* Preload sample
* Addressing review comments
* Update docs
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Co-authored-by: Giovanni Baraldi <gbaraldi@amd.com>
[ROCm/rocprofiler-sdk commit: e898079a13]
27 wiersze
1.1 KiB
Markdown
27 wiersze
1.1 KiB
Markdown
# Thread Trace and ROCprof Trace Decoder
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## Services
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- Thread trace in device profiling mode
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- ROCprof Trace Decoder decodes the received thread trace data
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- Thread trace start/stop using roctx
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## Properties
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### [agent.cpp](agent.cpp):
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- Configures thread trace in all GPU agents found with `rocprofiler_configure_device_thread_trace_service`
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- Waits until `roctxProfilerResume` is called to start thread trace
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- Stops tracing at `roctxProfilerPause`
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- Receives the trace data in `shader_data_callback` and calls `rocprofiler_trace_decode` to decode the data
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- `rocprofiler_trace_decode` calls `parse` (a lambda)
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- `parse` receives the dedecoded data and increments hitcount/latencies by pc address
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- At application end, `tool_fini` calls `gen_output_stream` to write the top hotspots into `thread_trace.log`
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### [main.cpp](main.cpp):
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- Defines a few different kernels and runs them
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- The first loop iteration warms up the kernels
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- The second iteration calls `roctxProfilerResume` to start thread trace
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- After the loop ends, `roctxProfilerPause` is called to stop tracing
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