OpenXiangShan/XiangShan
Oct 2024 – Jan 2025
3 Months active
Languages Used
MakefileScala
Technical Skills
Build System ConfigurationHardware Description Language (HDL)Submodule ManagementSystem on Chip (SoC) DesignConcurrency ControlHardware Design
sumailyyc
PROFILE
Sumailyyc
Worked on the OpenXiangShan/XiangShan repository, delivering modular upgrades and performance enhancements for System on Chip (SoC) configurations. Replaced legacy cache components with OpenLLC and OpenNCB modules, updating build dependencies and submodule management to support greater configurability and future optimization. Improved concurrency in the CHI-AXI bridge by tuning outstandingDepth parameters, aligning bridge parallelism with L2 MSHR and MMIO request patterns for better throughput. Enhanced debugging and observability by enabling top-down analysis and fixing CHI message routing in multi-core simulations. Utilized Makefile and Scala, applying skills in hardware design, concurrency control, and embedded systems to improve reliability and performance.
Overall Statistics
Feature vs Bugs
75%Features
Repository Contributions
4Total
Bugs
1
Commits
4
Features
3
Lines of code
148
Activity Months3
Your Network
61 peopleWork History
January 2025
2 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for OpenXiangShan/XiangShan. Delivered notable enhancements and fixes that improve observability, reliability, and performance analysis in multi-core simulations: (1) OpenLLC Top-Down Analysis Support introduced via configuration updates and debug signal enablement, expanding monitoring capabilities; (2) CHI routing fixed in multi-core scenarios by assigning unique node IDs per core, preventing simulation errors and ensuring correct message routing; (3) overall boost in debugging efficiency and performance profiling, with clearer visibility into system behavior for faster issue isolation.
2 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for OpenXiangShan/XiangShan. Delivered notable enhancements and fixes that improve observability, reliability, and performance analysis in multi-core simulations: (1) OpenLLC Top-Down Analysis Support introduced via configuration updates and debug signal enablement, expanding monitoring capabilities; (2) CHI routing fixed in multi-core scenarios by assigning unique node IDs per core, preventing simulation errors and ensuring correct message routing; (3) overall boost in debugging efficiency and performance profiling, with clearer visibility into system behavior for faster issue isolation.
January 2025
December 2024
1 Commits • 1 Features
Dec 1, 2024Month: 2024-12 | Repository: OpenXiangShan/XiangShan. Key feature delivered: CHI-AXI Bridge Concurrency Optimization. The change tunes the outstandingDepth parameter for chi_llcBridge_opt and chi_mmioBridge_opt to better align bridge parallelism with L2 MSHR and MMIO request patterns within the XSTop module, improving overall system performance. Commit: af532009ae5e5404b583bc8aa92a6ff22dc90aac (perf(XSTop): improve concurrency of CHI-AXI bridge (#4008)). Major bugs fixed: None reported this month. Overall impact: Enhanced bridge throughput and efficiency, contributing to higher system performance and more efficient resource usage in the OpenXiangShan/XiangShan stack. Technologies/skills demonstrated: CHI-AXI protocol tuning, concurrency optimization, performance engineering, targeted parameter tuning, and code instrumentation.
December 2024
1 Commits • 1 Features
Dec 1, 2024Month: 2024-12 | Repository: OpenXiangShan/XiangShan. Key feature delivered: CHI-AXI Bridge Concurrency Optimization. The change tunes the outstandingDepth parameter for chi_llcBridge_opt and chi_mmioBridge_opt to better align bridge parallelism with L2 MSHR and MMIO request patterns within the XSTop module, improving overall system performance. Commit: af532009ae5e5404b583bc8aa92a6ff22dc90aac (perf(XSTop): improve concurrency of CHI-AXI bridge (#4008)). Major bugs fixed: None reported this month. Overall impact: Enhanced bridge throughput and efficiency, contributing to higher system performance and more efficient resource usage in the OpenXiangShan/XiangShan stack. Technologies/skills demonstrated: CHI-AXI protocol tuning, concurrency optimization, performance engineering, targeted parameter tuning, and code instrumentation.
October 2024
1 Commits • 1 Features
Oct 1, 2024October 2024 monthly summary for OpenXiangShan/XiangShan. Key feature delivered: OpenLLC/OpenNCB-based SoC configuration upgrade described as replacement of DummyLLC with OpenLLC and OpenNCB in KunminghuV2Config, with corresponding updates to build dependencies, submodule initialization, and integration of the new components. This work enhances SoC configurability and paves the way for future performance/power optimizations by introducing modular LLC/NCB components. No major bugs reported or fixed this month.
1 Commits • 1 Features
Oct 1, 2024October 2024 monthly summary for OpenXiangShan/XiangShan. Key feature delivered: OpenLLC/OpenNCB-based SoC configuration upgrade described as replacement of DummyLLC with OpenLLC and OpenNCB in KunminghuV2Config, with corresponding updates to build dependencies, submodule initialization, and integration of the new components. This work enhances SoC configurability and paves the way for future performance/power optimizations by introducing modular LLC/NCB components. No major bugs reported or fixed this month.
October 2024
Activity
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Quality Metrics
Correctness85.0%
Maintainability85.0%
Architecture80.0%
Performance85.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
MakefileScala
Technical Skills
Build System ConfigurationConcurrency ControlDebuggingEmbedded SystemsHardware Description Language (HDL)Hardware DesignPerformance OptimizationSubmodule ManagementSystem ArchitectureSystem DesignSystem on Chip (SoC) Design
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