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
Haiping contributed to the google/perfetto repository by enhancing Android startup performance analysis tools over a three-month period. They developed features that added process and thread identifiers, as well as precise start and end timestamps, to trace sections, enabling more granular and accurate profiling of Android startup events. Using SQL, protobuf, and data modeling, Haiping updated proto definitions and SQL queries to support time range data and improved metric fidelity. They also addressed a key bug by refining startup metrics to track class loading instead of initialization, resulting in more reliable diagnostics. The work demonstrated depth in performance analysis and metric tracking.
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
4376 people
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
Loading activity data...
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
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline