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
Worked on the geerlingguy/linux repository to enhance the GVE network driver with advanced AF_XDP zero-copy capabilities, focusing on both receive and transmit datapaths. Consolidated XDP and XSK registration logic, introducing helper functions in C to streamline and deduplicate code paths for zero-copy and copy modes. Addressed a critical bug by implementing a per-queue bitmap in the kernel’s netdev_priv structure, ensuring zero-copy activation only for queues with enabled XSK pools and improving reliability during queue restarts. Leveraged expertise in kernel development, device drivers, and networking to deliver lower latency and higher throughput for AF_XDP-based workloads in production environments.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
5Total
Bugs
1
Commits
5
Features
2
Lines of code
572
Activity Months1
Your Network
5904 peopleSame Organization
@google.com4703
Benedict OdaiMember
Craig IngramMember
KayyuriMember
Scott SuarezMember
Agent2Agent (A2A) BotMember
Andreas AbelMember
Aadi KapurMember
Aadish GoelMember
Aahil MehtaMember
Shared Repositories
1201
Xinyu LiuMember
luoguangfeiMember
Tianyi CuiMember
Feng LeeMember
Ali NasrolahiMember
Andrey AlbershteynMember
Aaradhana SahuMember
Aaron MaMember
Ian AbbottMember
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
Loading activity data...
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
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline