facebook/fboss
Oct 2025 – May 2026
7 Months active
Languages Used
C++JSON
Technical Skills
C++ developmentCLI developmentNetwork programmingC++data loggingdatabase design
Daniel Long
PROFILE
Daniel Long
Worked on the facebook/fboss repository, delivering features and fixes across network programming, benchmarking, and test infrastructure. Developed enhancements for CLI diagnostics, data logging, and configuration management, including improved Serdes parameter visibility and a new data tracking table using C++ and JSON. Built robust benchmarking tools for per-port CPU latency analysis and introduced multi-port test frameworks to improve performance insights. Addressed memory management and error handling in embedded systems, stabilizing test environments and expanding cross-platform compatibility. Contributed to hardware testing and debugging by refining test reliability, implementing detailed logging, and ensuring safer object destruction, resulting in more reliable and maintainable code.
Overall Statistics
Feature vs Bugs
80%Features
Repository Contributions
18Total
Bugs
2
Commits
18
Features
8
Lines of code
100,347
Activity Months7
Your Network
3299 peopleSame Organization
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Work History
May 2026
5 Commits • 2 Features
May 1, 2026Month: 2026-05 — Consolidated stability and reliability improvements for Yangra and expanded Chenab cross-platform compatibility, delivering concrete OSS test improvements and robust error handling that reduce test failures and enhance platform coverage. The work focused on delivering business value through more stable test outcomes, clearer platform identification, and broader support across vendor families.
5 Commits • 2 Features
May 1, 2026Month: 2026-05 — Consolidated stability and reliability improvements for Yangra and expanded Chenab cross-platform compatibility, delivering concrete OSS test improvements and robust error handling that reduce test failures and enhance platform coverage. The work focused on delivering business value through more stable test outcomes, clearer platform identification, and broader support across vendor families.
May 2026
April 2026
6 Commits • 2 Features
Apr 1, 2026Month 2026-04 performance summary for facebook/fboss: Delivered a major CPU latency benchmarking overhaul with per-port attribution and improved measurement fidelity, enabling targeted performance improvements and SLA visibility. Introduced robust multi-port benchmarking (concurrent and sequential) to reveal contention and port-level bottlenecks, while keeping measurement accuracy high through enhanced payload decoding and IP/VLAN handling. The work emphasizes business value through deeper latency insights, faster root-cause analysis, and richer reporting suitable for performance reviews and capacity planning.
April 2026
6 Commits • 2 Features
Apr 1, 2026Month 2026-04 performance summary for facebook/fboss: Delivered a major CPU latency benchmarking overhaul with per-port attribution and improved measurement fidelity, enabling targeted performance improvements and SLA visibility. Introduced robust multi-port benchmarking (concurrent and sequential) to reveal contention and port-level bottlenecks, while keeping measurement accuracy high through enhanced payload decoding and IP/VLAN handling. The work emphasizes business value through deeper latency insights, faster root-cause analysis, and richer reporting suitable for performance reviews and capacity planning.
March 2026
3 Commits • 1 Features
Mar 1, 2026March 2026: Delivered Packet Traps Destination MAC Handling Enhancement in fboss with trapPacketUtils updates, enabling destination-IP-based actions and improved benchmarking capabilities. Fixed Destruction Order Stabilization in BcmRouteTable and resetObject handling, correcting destructor ordering to prevent use-after-free and reverting a prior change for safe destruction sequence. Business impact: more reliable packet processing, safer memory management, and clearer benchmarking visibility, reducing production risk and accelerating debugging. Technologies/skills demonstrated: C++, memory management, destructor ordering, shared_ptr/RefMap usage, benchmarking/validated tests, code review and collaboration.
3 Commits • 1 Features
Mar 1, 2026March 2026: Delivered Packet Traps Destination MAC Handling Enhancement in fboss with trapPacketUtils updates, enabling destination-IP-based actions and improved benchmarking capabilities. Fixed Destruction Order Stabilization in BcmRouteTable and resetObject handling, correcting destructor ordering to prevent use-after-free and reverting a prior change for safe destruction sequence. Business impact: more reliable packet processing, safer memory management, and clearer benchmarking visibility, reducing production risk and accelerating debugging. Technologies/skills demonstrated: C++, memory management, destructor ordering, shared_ptr/RefMap usage, benchmarking/validated tests, code review and collaboration.
March 2026
January 2026
1 Commits • 1 Features
Jan 1, 2026Month 2026-01: Delivered foundational DSF configuration testing support, establishing a framework for DSF validation. Implemented a new DSF configuration test class, enabling repeatable tests and future expansion. No major bugs fixed this month. The work improves quality assurance for DSF-related features and reduces release risk. Technologies/skills demonstrated include test framework design, Git-based collaboration, and staging test artifacts for ongoing automation.
January 2026
1 Commits • 1 Features
Jan 1, 2026Month 2026-01: Delivered foundational DSF configuration testing support, establishing a framework for DSF validation. Implemented a new DSF configuration test class, enabling repeatable tests and future expansion. No major bugs fixed this month. The work improves quality assurance for DSF-related features and reduces release risk. Technologies/skills demonstrated include test framework design, Git-based collaboration, and staging test artifacts for ongoing automation.
December 2025
1 Commits
Dec 1, 2025December 2025: Stabilized critical test infrastructure in the facebook/fboss repository by introducing a disable-LACP flag in the Production Invariant Test. This change prevents LACP interference in specific testing environments, improving test reliability and CI feedback across environments.
1 Commits
Dec 1, 2025December 2025: Stabilized critical test infrastructure in the facebook/fboss repository by introducing a disable-LACP flag in the Production Invariant Test. This change prevents LACP interference in specific testing environments, improving test reliability and CI feedback across environments.
December 2025
November 2025
1 Commits • 1 Features
Nov 1, 2025In November 2025, delivered a Scuba data system enhancement for the fboss repo by adding a new fboss_bisect2_tool table to log attributes for improved data tracking and analysis. This change provides focused instrumentation for bisect runs, enabling faster root-cause analysis, better trend visibility, and more data-driven decision-making for release quality. The work was implemented in commit 8482f31669ce13489003467e7e6f996d331da920 and landed after code review (Differential Revision: D86250841; reviewed by zechengh09).
November 2025
1 Commits • 1 Features
Nov 1, 2025In November 2025, delivered a Scuba data system enhancement for the fboss repo by adding a new fboss_bisect2_tool table to log attributes for improved data tracking and analysis. This change provides focused instrumentation for bisect runs, enabling faster root-cause analysis, better trend visibility, and more data-driven decision-making for release quality. The work was implemented in commit 8482f31669ce13489003467e7e6f996d331da920 and landed after code review (Differential Revision: D86250841; reviewed by zechengh09).
October 2025
1 Commits • 1 Features
Oct 1, 2025Month: 2025-10 — Focused on improving visibility and diagnosability of Serdes configurations in the fboss2 CLI. Delivered an enhancement to fboss2 show interface phy to print Serdes parameters, improving debugging and validation of PHY configurations in fboss deployments. The change is captured in the commit ca99db33684f033bfec3c2177380fc56941b8d47 with a detailed log addition and reviewed under D84664607. Impact: faster issue triage for PHY-related configurations and increased operator confidence in interface PHY data.
1 Commits • 1 Features
Oct 1, 2025Month: 2025-10 — Focused on improving visibility and diagnosability of Serdes configurations in the fboss2 CLI. Delivered an enhancement to fboss2 show interface phy to print Serdes parameters, improving debugging and validation of PHY configurations in fboss deployments. The change is captured in the commit ca99db33684f033bfec3c2177380fc56941b8d47 with a detailed log addition and reviewed under D84664607. Impact: faster issue triage for PHY-related configurations and increased operator confidence in interface PHY data.
October 2025
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Quality Metrics
Correctness93.4%
Maintainability83.4%
Architecture87.8%
Performance83.4%
AI Usage23.4%
Skills & Technologies
Programming Languages
C++JSON
Technical Skills
C++C++ developmentC++ programmingCLI developmentNetwork programmingbenchmarkingconfiguration managementdata loggingdata structuringdatabase designdebuggingembedded systemserror handlinghardware testingmemory management
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