google/perfetto
Feb 2025 – Apr 2025
3 Months active
Languages Used
C++TypeScriptprotobufprotopythonsql
Technical Skills
FtraceProtocol BuffersSystem ProgrammingSystem TracingTrace AnalysisUI Development
Shin-Yu Wang
PROFILE
Shin-yu Wang
Shinyu Wang contributed to the google/perfetto repository by developing end-to-end observability features for display pipeline performance. Over three months, Shinyu introduced new ftrace events and enhanced trace processing to capture and visualize Display Processing Unit underruns and vertical blanking IRQ signals. Using C++, Protocol Buffers, and SQL, Shinyu integrated these events into the trace processor and updated the UI for actionable debugging insights. The work included transitioning from global to per-display underrun metrics, improving monitoring granularity and accuracy. Shinyu’s engineering provided deeper visibility into display subsystems, enabling more precise performance analysis and supporting data-driven optimizations for system monitoring.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
4Total
Bugs
0
Commits
4
Features
3
Lines of code
320
Activity Months3
Your Network
4376 people
Work History
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025: Focused on delivering a key metrics feature for Perfetto with improved display pipeline visibility and groundwork for more accurate monitoring. This month’s effort centers on introducing per-display underrun reporting and deprecating the global total_dpu_underrun_count to increase granularity and accuracy of DPU underrun metrics. No separate bug fixes were documented in the provided data; the work enhances observability and paves the way for data-driven optimizations.
1 Commits • 1 Features
Apr 1, 2025April 2025: Focused on delivering a key metrics feature for Perfetto with improved display pipeline visibility and groundwork for more accurate monitoring. This month’s effort centers on introducing per-display underrun reporting and deprecating the global total_dpu_underrun_count to increase granularity and accuracy of DPU underrun metrics. No separate bug fixes were documented in the provided data; the work enhances observability and paves the way for data-driven optimizations.
April 2025
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary focusing on business value and technical outcomes for the google/perfetto project. Key feature delivered: new tracing event to capture vertical blanking IRQ enable/disable signals. This expands observability for display pipelines and supports debugging and performance analysis. Minor or no user-facing bugs reported this month. Overall impact includes improved tracing accuracy for display subsystems and a clearer path for performance optimizations.
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary focusing on business value and technical outcomes for the google/perfetto project. Key feature delivered: new tracing event to capture vertical blanking IRQ enable/disable signals. This expands observability for display pipelines and supports debugging and performance analysis. Minor or no user-facing bugs reported this month. Overall impact includes improved tracing accuracy for display subsystems and a clearer path for performance optimizations.
February 2025
2 Commits • 1 Features
Feb 1, 2025February 2025: Monthly summary for google/perfetto focused on delivering end-to-end observability improvements for Display Processing Unit (DPU) underruns. Introduced a new ftrace event and added UI/trace processing integration to enable faster debugging and more actionable performance insights.
2 Commits • 1 Features
Feb 1, 2025February 2025: Monthly summary for google/perfetto focused on delivering end-to-end observability improvements for Display Processing Unit (DPU) underruns. Introduced a new ftrace event and added UI/trace processing integration to enable faster debugging and more actionable performance insights.
February 2025
Activity
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Quality Metrics
Correctness100.0%
Maintainability95.0%
Architecture100.0%
Performance95.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++TypeScriptprotoprotobufpythonsql
Technical Skills
DebuggingFtracePerformance AnalysisProtocol BuffersSQLSystem ProgrammingSystem TracingTrace AnalysisUI Developmentmetrics collectionperformance analysisprotobufsystem monitoring
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