tp: Wattson: improve static power attribution using bitmasks#5383
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tp: Wattson: improve static power attribution using bitmasks#5383
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Introduces bitmasks to track CPU cluster activity more accurately, allowing for generic attribution of shared static power. Static power (leakage) for a cluster without inter-cluster dependency was only supported for a single cluster before. Update to using bitmasks to support multiple cluster static power calculations when the cluster do not have inter-cluster power dependency. This is achieved by: 1. Adding new SQL macros for 8-bit bitwise operations in wattson/utils.sql. 2. Creating a policy-based bitmask table in wattson/device_infos.sql to map CPUs to their respective clusters. 3. Updating the pivot operation to calculate cluster activity masks. 4. Refining the final power estimate calculations to use these masks. Test: tools/diff_test_trace_processor.py out/linux_clang_release/trace_processor_shell --name-filter '.*wattson.*' Bug: 495918677 Signed-off-by: Samuel Wu <wusamuel@google.com>
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Introduces bitmasks to track CPU cluster activity more accurately, allowing for generic attribution of shared static power.
Static power (leakage) for a cluster without inter-cluster dependency was only supported for a single cluster before. Update to using bitmasks to support multiple cluster static power calculations when the cluster do not have inter-cluster power dependency.
This is achieved by:
Test: tools/diff_test_trace_processor.py out/linux_clang_release/trace_processor_shell --name-filter '.wattson.'
Bug: 495918677