geerlingguy/linux
Jul 2025 – Jul 2025
1 Month active
Languages Used
C
Technical Skills
AF_XDPDevice DriversKernel DevelopmentNetwork Driver DevelopmentNetwork DriversNetworking
Joshua Washington
PROFILE
Joshua Washington
Josh Wash contributed core enhancements to the geerlingguy/linux repository, focusing on high-performance zero-copy networking in the GVE driver. He unified XDP and XSK registration logic, streamlining code paths and introducing helper functions to simplify pool management. Using C and deep kernel development expertise, Josh implemented AF_XDP zero-copy support for both RX and TX datapaths, adding new states and structures to manage XSK buffers efficiently. He also addressed a bug affecting zero-copy activation on queue restarts by introducing per-queue bitmaps, ensuring correctness and reliability. The work demonstrated strong depth in network driver development and zero-copy networking techniques.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
5Total
Bugs
1
Commits
5
Features
2
Lines of code
572
Activity Months1
Your Network
5349 people
Work History
July 2025
5 Commits • 2 Features
Jul 1, 2025July 2025: Delivered core XDP/XSK improvements in the GVE driver to enable high-performance zero-copy networking, while hardening correctness on queue restarts. Key outcomes include consolidated registration logic, robust zero-copy activation controls, and the introduction of AF_XDP zero-copy datapaths for RX and TX, enabling lower latency and higher throughput for workloads relying on AF_XDP.
5 Commits • 2 Features
Jul 1, 2025July 2025: Delivered core XDP/XSK improvements in the GVE driver to enable high-performance zero-copy networking, while hardening correctness on queue restarts. Key outcomes include consolidated registration logic, robust zero-copy activation controls, and the introduction of AF_XDP zero-copy datapaths for RX and TX, enabling lower latency and higher throughput for workloads relying on AF_XDP.
July 2025
Activity
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Quality Metrics
Correctness90.0%
Maintainability82.0%
Architecture86.0%
Performance86.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C
Technical Skills
AF_XDPDevice DriversKernel DevelopmentNetwork Driver DevelopmentNetwork DriversNetworkingXDPXSKZero-Copy Networking
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