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Nick Grifka

PROFILE

Nick Grifka

Worked on enhancing network observability and reliability in the microsoft/xdp-for-windows and microsoft/ebpf-for-windows repositories by developing features in C and C++. Delivered dynamic Packet Monitor (PktMon) registration for XDP, introducing a global tracking list and lifecycle callbacks to ensure packet monitoring remains functional regardless of service load order, and implemented comprehensive functional tests to validate packet capture reliability. Integrated pktmon into the XDP framework to provide actionable telemetry for Windows networking. Additionally, expanded unit test coverage for Libbpf inner map key lookups, ensuring error handling and regression protection for eBPF execution on Windows. Demonstrated skills in driver development and system programming.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

3Total
Bugs
0
Commits
3
Features
3
Lines of code
2,659
Activity Months3

Your Network

5002 people

Same Organization

@microsoft.com
4977
GitOpsMember
Ananta GuptaMember
Abi GicicMember
Abigail HartmanMember
Abram SandersonMember
Adam EttenbergerMember
Adam KrantzMember
Alexandre GattikerMember
Ami HollanderMember

Work History

June 2026

1 Commits • 1 Features

Jun 1, 2026

June 2026: Focused on strengthening Windows XDP observability by delivering dynamic PktMon registration. Implemented a mechanism that ensures packet monitoring remains functional even if PktMon loads after XDP interfaces initialize by introducing a global tracking list and lifecycle callbacks to manage PktMon service state changes. Included comprehensive functional tests to verify registration and drop capture across service states, reducing monitoring gaps and improving deployment resilience for Windows-based XDP workloads.

May 2026

1 Commits • 1 Features

May 1, 2026

Month: 2026-05 — Microsoft/xdp-for-windows: concise monthly summary focusing on business value and technical achievements. 1) Key features delivered - Packet Monitor Integration for XDP Networking: integrated pktmon into the XDP framework to provide enhanced packet monitoring capabilities across network interfaces. Commit: 1e8a1feda30468ace54edae0412dd735172d6488 ('Add pktmon integration (#1022)'). 2) Major bugs fixed - None reported this period. 3) Overall impact and accomplishments - Delivered observable and actionable telemetry for Windows XDP networking, enabling faster root-cause analysis and improved customer support. Establishes groundwork for telemetry-driven performance improvements. 4) Technologies/skills demonstrated - pktmon integration, Windows XDP framework, kernel-level telemetry, Git traceability to #1022; cross-functional collaboration.

June 2025

1 Commits • 1 Features

Jun 1, 2025

Month: 2025-06. Focused on strengthening test coverage for Libbpf inner map key lookups in microsoft/ebpf-for-windows. Delivered new unit tests to verify non-zero and nonexistent key lookups properly fail and errno is set, reducing regression risk in inner map operations and contributing to more reliable eBPF execution on Windows.

Activity

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Quality Metrics

Correctness93.4%
Maintainability86.6%
Architecture93.4%
Performance86.6%
AI Usage46.6%

Skills & Technologies

Programming Languages

CC++

Technical Skills

CC programmingNetworkingPowerShellSystem ProgrammingUnit TestingWindows Driver Developmentdriver developmenteBPFnetwork programming

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

microsoft/xdp-for-windows

May 2026 Jun 2026
2 Months active

Languages Used

C

Technical Skills

C programmingdriver developmentnetwork programmingCNetworkingPowerShell

microsoft/ebpf-for-windows

Jun 2025 Jun 2025
1 Month active

Languages Used

C++

Technical Skills

Unit TestingeBPF