OpenXiangShan/GEM5
Mar 2025 – Jun 2025
3 Months active
Languages Used
C++PythonYAMLShell
Technical Skills
Branch PredictionCI/CDCPU SimulationGitHub ActionsPerformance AnalysisSystem Configuration
Xu Boran
PROFILE
Xu Boran
Worked on the OpenXiangShan/GEM5 repository to enhance CPU simulation workflows and branch prediction analysis. Delivered features such as refined branch predictor instrumentation, a unified CI/CD template for benchmark testing, and a weekly performance validation workflow. Improved the TAGE branch predictor by integrating a Path History Register and aligning start addresses, while refactoring the BPU tick cycle with a finite state machine for clearer control flow. Focused on reproducible benchmarking and maintainable code, leveraging C++, Python, and shell scripting. Emphasized performance analysis, low-level systems, and CI automation, enabling faster optimization cycles and streamlined performance data delivery without major bug fixes.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
6Total
Bugs
0
Commits
6
Features
5
Lines of code
342
Activity Months3
Your Network
27 peopleShared Repositories
27
Work History
June 2025
3 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for OpenXiangShan/GEM5 focused on strengthening the branch-prediction stack and improving the control-flow clarity of the BPU. Delivered two major features with precise fixes and clean refactors, enabling higher accuracy and easier future maintenance while preserving core behavior.
3 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for OpenXiangShan/GEM5 focused on strengthening the branch-prediction stack and improving the control-flow clarity of the BPU. Delivered two major features with precise fixes and clean refactors, enabling higher accuracy and easier future maintenance while preserving core behavior.
June 2025
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 — OpenXiangShan/GEM5: Delivered a Weekly Performance Testing Workflow and Unified CI Template. Consolidated CI workflows for spec06 and spec17 benchmarks across coverage levels into a single template; added a weekly test workflow file and updated configs to support new benchmark types and configurations. This work enables consistent weekly performance validation, improves visibility, and reduces maintenance overhead. Commit 4e450bc8225694e1fc9392f3d955e59dd4ae7c54: 'add weekly ci, with 1.0 coverage, run on thursday night (#401)'.
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 — OpenXiangShan/GEM5: Delivered a Weekly Performance Testing Workflow and Unified CI Template. Consolidated CI workflows for spec06 and spec17 benchmarks across coverage levels into a single template; added a weekly test workflow file and updated configs to support new benchmark types and configurations. This work enables consistent weekly performance validation, improves visibility, and reduces maintenance overhead. Commit 4e450bc8225694e1fc9392f3d955e59dd4ae7c54: 'add weekly ci, with 1.0 coverage, run on thursday night (#401)'.
March 2025
2 Commits • 2 Features
Mar 1, 2025March 2025: Delivered performance analysis enhancements for GEM5 and streamlined performance data delivery via CI artifacts, enabling faster optimization cycles and reproducible benchmarking for OpenXiangShan/GEM5.
2 Commits • 2 Features
Mar 1, 2025March 2025: Delivered performance analysis enhancements for GEM5 and streamlined performance data delivery via CI artifacts, enabling faster optimization cycles and reproducible benchmarking for OpenXiangShan/GEM5.
March 2025
Activity
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Quality Metrics
Correctness83.4%
Maintainability83.4%
Architecture86.6%
Performance76.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++PythonShellYAML
Technical Skills
Branch PredictionCI/CDCPU ArchitectureCPU SimulationComputer ArchitectureGitHub ActionsLow-Level SystemsPerformance AnalysisPerformance TestingShell ScriptingSimulationSystem Configuration
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