google/perfetto
Oct 2024 – Dec 2024
3 Months active
Languages Used
PROTOSQLprotobufsql
Technical Skills
Data ModelingPerformance AnalysisSQLSystem Tracingperformance analysisprotobuf definition
Haiping Yang
PROFILE
Haiping Yang
Worked on enhancing Android startup performance analysis in the google/perfetto repository by developing features that improved trace granularity and metric accuracy. Introduced process and thread identifiers to trace sections, enabling more detailed startup diagnostics. Added start and end timestamps to trace slices and threads, updating protobuf definitions and SQL functions to support precise time range analytics. Addressed a key metric accuracy issue by shifting measurement from class initialization to class loading, refining proto fields and SQL queries for reliable startup profiling. Utilized skills in data modeling, SQL scripting, and trace analysis to deliver targeted improvements for performance visibility and debugging.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
3Total
Bugs
1
Commits
3
Features
2
Lines of code
1,083
Activity Months3
Your Network
4951 peopleSame Organization
@google.com4703
Benedict OdaiMember
Craig IngramMember
KayyuriMember
Scott SuarezMember
Agent2Agent (A2A) BotMember
Andreas AbelMember
Aadi KapurMember
Aadish GoelMember
Aahil MehtaMember
Shared Repositories
248
Work History
December 2024
1 Commits
Dec 1, 2024Month 2024-12: Delivered a critical startup metric accuracy fix in google/perfetto by tracking class loading instead of class initialization, aligning proto fields and SQL queries with the correct metric, enabling more reliable startup analysis and diagnostics. This work enhances data-driven startup optimization and overall performance visibility.
1 Commits
Dec 1, 2024Month 2024-12: Delivered a critical startup metric accuracy fix in google/perfetto by tracking class loading instead of class initialization, aligning proto fields and SQL queries with the correct metric, enabling more reliable startup analysis and diagnostics. This work enhances data-driven startup optimization and overall performance visibility.
December 2024
November 2024
1 Commits • 1 Features
Nov 1, 2024For 2024-11, contributed a key feature to google/perfetto: Android Startup Timing Enhancement by adding start and end timestamps to trace slices and threads, enabling more granular startup time analysis. Updated proto definitions and SQL functions to support time range data. This work lays the groundwork for precise startup profiling and improves the ability to diagnose Android startup bottlenecks. Commit 66830b4b094c1fe0f4a98016eeef4f7ebf6e541c included in the changes.
November 2024
1 Commits • 1 Features
Nov 1, 2024For 2024-11, contributed a key feature to google/perfetto: Android Startup Timing Enhancement by adding start and end timestamps to trace slices and threads, enabling more granular startup time analysis. Updated proto definitions and SQL functions to support time range data. This work lays the groundwork for precise startup profiling and improves the ability to diagnose Android startup bottlenecks. Commit 66830b4b094c1fe0f4a98016eeef4f7ebf6e541c included in the changes.
October 2024
1 Commits • 1 Features
Oct 1, 2024Monthly summary for 2024-10 focused on delivering enhanced tracing capabilities in google/perfetto to improve startup performance analysis and debugging.
1 Commits • 1 Features
Oct 1, 2024Monthly summary for 2024-10 focused on delivering enhanced tracing capabilities in google/perfetto to improve startup performance analysis and debugging.
October 2024
Activity
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Quality Metrics
Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance100.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
PROTOSQLprotobufsql
Technical Skills
Data ModelingPerformance AnalysisSQLSystem Tracingandroid developmentmetric trackingperformance analysisprotobuf definitionsql scriptingtrace analysis
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