google/perfetto
Nov 2024 – Nov 2024
1 Month active
Languages Used
C++PythonSQLTypeScriptprotobuf
Technical Skills
Performance AnalysisPerformance MonitoringProtocol BuffersPython DevelopmentSQLSystem Analysis
Ryuichiro Chiba
PROFILE
Ryuichiro Chiba
In November 2024, Chibar enhanced the google/perfetto repository by delivering features that improve performance debugging and kernel IO visibility. Chibar developed UI visualizations for uninterruptible sleep threads and block device IO congestion, leveraging TypeScript and SQL to process and display kernel event data. They added support for Linux kernel block IO tracepoints in Ftrace, defining new protobuf messages and integrating them into the trace processing pipeline. To ensure reliability, Chibar introduced a diff test suite for BlockIo tracepoints, focusing on robust validation rather than bug fixes. This work deepened Perfetto’s capabilities for system analysis and performance monitoring workflows.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
4Total
Bugs
0
Commits
4
Features
3
Lines of code
645
Activity Months1
Your Network
4376 people
Work History
November 2024
4 Commits • 3 Features
Nov 1, 2024November 2024: Delivered major UI and tracing enhancements for Perfetto to improve performance debugging and kernel IO visibility. Implemented UI visualizations for uninterruptible sleep threads and block device IO congestion, added Block IO tracepoint support in Ftrace with protobuf definitions, and introduced a diff test suite to validate BlockIo changes. No major user-facing bugs fixed this month; focus was on feature delivery and test coverage to accelerate root-cause analysis and reliability.
4 Commits • 3 Features
Nov 1, 2024November 2024: Delivered major UI and tracing enhancements for Perfetto to improve performance debugging and kernel IO visibility. Implemented UI visualizations for uninterruptible sleep threads and block device IO congestion, added Block IO tracepoint support in Ftrace with protobuf definitions, and introduced a diff test suite to validate BlockIo changes. No major user-facing bugs fixed this month; focus was on feature delivery and test coverage to accelerate root-cause analysis and reliability.
November 2024
Activity
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Quality Metrics
Correctness97.6%
Maintainability95.0%
Architecture97.6%
Performance95.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++PythonSQLTypeScriptprotobuf
Technical Skills
Performance AnalysisPerformance MonitoringProtocol BuffersPython DevelopmentSQLSystem AnalysisSystem ProgrammingTestingTrace ProcessingTypeScriptUI Development
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