google/perfetto
Feb 2025 – Jun 2026
2 Months active
Languages Used
protobufJava
Technical Skills
Android DevelopmentProtocol BuffersSystem Tracingandroid developmentperformance tracingprotobuf definition
Shai Barack
PROFILE
Shai Barack
Worked on the google/perfetto repository to enhance Android performance tracing and profiling reliability. Developed and integrated AndroidBitmap tracing, introducing a Protocol Buffers message to capture detailed bitmap properties within AndroidTrackEvent, enabling deeper analysis of bitmap rendering and memory usage. Later, extended the Perfetto Java SDK by adding a skipFrames overload to the ExpensiveDebugCallStack method, improving stack trace accuracy for thread sampling scenarios such as watchdogs. Maintained backward compatibility and updated the test suite to address stability and flakiness. Demonstrated expertise in Java, Protocol Buffers, and system tracing, focusing on robust feature delivery and test-driven development practices.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
3Total
Bugs
0
Commits
3
Features
2
Lines of code
358
Activity Months2
Your Network
5262 peopleSame Organization
@google.com5001
Benedict OdaiMember
Craig IngramMember
KayyuriMember
Scott SuarezMember
Agent2Agent (A2A) BotMember
Andreas AbelMember
Aadi KapurMember
Aadish GoelMember
Aahil MehtaMember
Shared Repositories
261
Work History
June 2026
1 Commits • 1 Features
Jun 1, 2026June 2026: Delivered the Perfetto Java SDK improvement to ExpensiveDebugCallStack by adding a skipFrames overload to improve stack trace accuracy in thread sampling (e.g., watchdogs). The new overload accepts skipFrames; default remains 2 frames to preserve backward compatibility. Updated the PerfettoTraceTest suite to validate the new overload and to address stability issues (added wait loops). This work also references bug 483709211 and the commit 5a4294a28379f0f3a33fb0fed707e3709735b5e1. Impact: more accurate top-frame capture improves profiling reliability for watchdog scenarios, reducing debugging time and increasing data usefulness for performance tuning. Skills demonstrated: Java SDK extension, stack trace handling, test-driven development, flaky-test mitigation, and end-to-end validation of performance data collection.
1 Commits • 1 Features
Jun 1, 2026June 2026: Delivered the Perfetto Java SDK improvement to ExpensiveDebugCallStack by adding a skipFrames overload to improve stack trace accuracy in thread sampling (e.g., watchdogs). The new overload accepts skipFrames; default remains 2 frames to preserve backward compatibility. Updated the PerfettoTraceTest suite to validate the new overload and to address stability issues (added wait loops). This work also references bug 483709211 and the commit 5a4294a28379f0f3a33fb0fed707e3709735b5e1. Impact: more accurate top-frame capture improves profiling reliability for watchdog scenarios, reducing debugging time and increasing data usefulness for performance tuning. Skills demonstrated: Java SDK extension, stack trace handling, test-driven development, flaky-test mitigation, and end-to-end validation of performance data collection.
June 2026
February 2025
2 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary focusing on key accomplishments for google/perfetto: AndroidBitmap tracing integration and stabilization.
February 2025
2 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary focusing on key accomplishments for google/perfetto: AndroidBitmap tracing integration and stabilization.
Activity
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Quality Metrics
Correctness93.4%
Maintainability86.6%
Architecture86.6%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
Javaprotobuf
Technical Skills
Android DevelopmentDebuggingJavaProtocol BuffersSystem TracingUnit Testingandroid developmentperformance tracingprotobuf definition
Repositories Contributed To
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