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Arne Jansen

PROFILE

Arne Jansen

Over a two-month period, contributed to the bpftrace/bpftrace repository by developing and refining core debugging and stack unwinding features. Implemented DWARF-based user-space stack unwinding for x64 architectures using LLVM 21+, enabling complete stack traces even for binaries without frame pointers, and introduced CLI options for targeted process analysis. Enhanced symbol extraction by enabling xz support in blazesym for improved stack symbolication in Red Hat-based environments. Addressed stack trace accuracy by correcting symbol resolution for inlined functions and restored PID-restricted probe listing. Work focused on C++ and Nix, emphasizing debugging, performance optimization, and robust system programming practices.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

4Total
Bugs
2
Commits
4
Features
2
Lines of code
3,115
Activity Months2

Your Network

70 people

Work History

April 2026

3 Commits • 2 Features

Apr 1, 2026

Concise monthly summary for 2026-04 focusing on delivering core features and stabilizing probe listing, with visibility into business value and technical contributions.

January 2026

1 Commits

Jan 1, 2026

January 2026 monthly summary for bpftrace/bpftrace focusing on improving stack trace accuracy. Delivered a targeted bug fix to ensure accurate resolution of symbols when multiple symbols arise from a single address due to inlining, enhancing debugging reliability and user trust in performance analysis workflows.

Activity

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Quality Metrics

Correctness100.0%
Maintainability80.0%
Architecture85.0%
Performance80.0%
AI Usage25.0%

Skills & Technologies

Programming Languages

C++Nix

Technical Skills

BPFBuild SystemsC++ developmentDevOpsLLVMNixdebuggingperformance optimizationsystem programmingtesting

Repositories Contributed To

1 repo

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

bpftrace/bpftrace

Jan 2026 Apr 2026
2 Months active

Languages Used

C++Nix

Technical Skills

debuggingperformance optimizationsystem programmingBPFBuild SystemsC++ development