IBM/velox
Nov 2024 – Nov 2024
1 Month active
Languages Used
C++CMakeJSON
Technical Skills
C++ DevelopmentCode RefactoringCode ReplayData EngineeringDistributed SystemsFile I/O
duanmeng
PROFILE
Duanmeng
Worked on the IBM/velox repository to enhance observability and debugging by introducing tracing and replay capabilities for core operators, specifically HashJoin and TableScan. Developed initial replayer support using C++ and CMake, implementing operator tracing and unit tests to enable reproducible debugging and performance analysis. Added split tracing for TableScan, laying the groundwork for future support of additional splits. Focused on improving test coverage and reducing debugging time, the work leveraged skills in distributed systems, serialization, and software testing. These contributions established a foundation for broader replay coverage, supporting more robust quality assurance and system design in future development cycles.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
2Total
Bugs
0
Commits
2
Features
1
Lines of code
1,739
Activity Months1
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Shared Repositories
117
Work History
November 2024
2 Commits • 1 Features
Nov 1, 2024November 2024 Velox work focused on enhancing observability and debugging capabilities through tracing and replay support for core operators. Implemented initial replayer support for HashJoin and TableScan, with unit tests and groundwork for additional splits. This work improves reproducible debugging, performance analysis, and QA verification, setting the stage for broader replay coverage in future sprints.
2 Commits • 1 Features
Nov 1, 2024November 2024 Velox work focused on enhancing observability and debugging capabilities through tracing and replay support for core operators. Implemented initial replayer support for HashJoin and TableScan, with unit tests and groundwork for additional splits. This work improves reproducible debugging, performance analysis, and QA verification, setting the stage for broader replay coverage in future sprints.
November 2024
Activity
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Quality Metrics
Correctness95.0%
Maintainability95.0%
Architecture95.0%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++CMakeJSON
Technical Skills
C++ DevelopmentCode RefactoringCode ReplayData EngineeringDistributed SystemsFile I/OSerializationSoftware TestingSystem DesignTesting
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