Shopify/opentelemetry-ebpf-profiler
Nov 2024 – Aug 2025
5 Months active
Languages Used
GoAssemblyCMakefileMarkdown
Technical Skills
Error HandlingLog ManagementPerformance ProfilingSystem ProgrammingeBPFBinary Analysis
Tommy Reilly
PROFILE
Tommy Reilly
Gnurizen contributed to the Shopify/opentelemetry-ebpf-profiler by developing features that enhanced observability and profiling depth for Go services. They implemented custom Go pprof label extraction using eBPF and Go, enabling richer metadata for performance analysis, and introduced Go version detection in ELF binaries to improve runtime compatibility checks. Their work included robust error handling in kernel module parsing, multi-interpreter support for ELF analysis, and improvements to memory mapping accuracy. Gnurizen also stabilized integration tests by refining build systems with Makefile adjustments. Their engineering demonstrated depth in low-level development, system programming, and binary analysis, resulting in more reliable and insightful profiling tools.
Overall Statistics
Feature vs Bugs
57%Features
Repository Contributions
8Total
Bugs
3
Commits
8
Features
4
Lines of code
1,680
Activity Months5
Your Network
20 people
Work History
August 2025
2 Commits • 1 Features
Aug 1, 2025Month: 2025-08 – Progress on stabilizing tests and expanding ELF analysis in Shopify/opentelemetry-ebpf-profiler. Delivered the following: 1) Reliability improvement for golabels integration tests by removing the -C flag and ensuring tests run from the correct directory, reducing flaky test outcomes. 2) Architecture enhancement to support multiple interpreters per ELF object, enabling more thorough analysis and deeper profiling insights. The work reduces CI noise, improves data quality from profiling, and sets the stage for broader interpreter-based analyses. Technologies: Go, Makefile adjustments, ELF parsing/interpreter loading, code refactor for multi-interpreter support. Impact: Higher test reliability, richer data, and faster iteration cycles for feature validation and performance improvements.
2 Commits • 1 Features
Aug 1, 2025Month: 2025-08 – Progress on stabilizing tests and expanding ELF analysis in Shopify/opentelemetry-ebpf-profiler. Delivered the following: 1) Reliability improvement for golabels integration tests by removing the -C flag and ensuring tests run from the correct directory, reducing flaky test outcomes. 2) Architecture enhancement to support multiple interpreters per ELF object, enabling more thorough analysis and deeper profiling insights. The work reduces CI noise, improves data quality from profiling, and sets the stage for broader interpreter-based analyses. Technologies: Go, Makefile adjustments, ELF parsing/interpreter loading, code refactor for multi-interpreter support. Impact: Higher test reliability, richer data, and faster iteration cycles for feature validation and performance improvements.
August 2025
July 2025
1 Commits
Jul 1, 2025Month: 2025-07 — Focused on improving data quality and reliability of the Shopify/opentelemetry-ebpf-profiler. Key outcomes included a critical bug fix in memory mapping analysis: parsing now includes anonymous mappings rather than dropping them, leading to more complete memory-region coverage. This change reduces data gaps in profiling results and enhances the accuracy of downstream analytics. There were no user-facing features delivered this month; however, the reliability improvements provide solid business value by improving the integrity of profiling data and trust in the profiler. Technologies demonstrated include robust parsing logic, code review discipline, and traceability via commit references in the OpenTelemetry eBPF profiler ecosystem.
July 2025
1 Commits
Jul 1, 2025Month: 2025-07 — Focused on improving data quality and reliability of the Shopify/opentelemetry-ebpf-profiler. Key outcomes included a critical bug fix in memory mapping analysis: parsing now includes anonymous mappings rather than dropping them, leading to more complete memory-region coverage. This change reduces data gaps in profiling results and enhances the accuracy of downstream analytics. There were no user-facing features delivered this month; however, the reliability improvements provide solid business value by improving the integrity of profiling data and trust in the profiler. Technologies demonstrated include robust parsing logic, code review discipline, and traceability via commit references in the OpenTelemetry eBPF profiler ecosystem.
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 focused on expanding observability for Go services by enabling custom Go pprof label support in the OpenTelemetry eBPF profiler. The work included new eBPF programs and Go readers to extract and surface labels, along with build/test infrastructure and a design doc to validate and maintain the capability. This lays the groundwork for richer profiling metadata and faster root-cause analysis in production workloads.
2 Commits • 1 Features
Jun 1, 2025June 2025 focused on expanding observability for Go services by enabling custom Go pprof label support in the OpenTelemetry eBPF profiler. The work included new eBPF programs and Go readers to extract and surface labels, along with build/test infrastructure and a design doc to validate and maintain the capability. This lays the groundwork for richer profiling metadata and faster root-cause analysis in production workloads.
June 2025
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for Shopify/opentelemetry-ebpf-profiler: Implemented Go Version Detection in ELF binaries, enabling the profiler to read Go runtime version from ELF build info and expose it via the File.goVersion() API. This enhancement improves observability, enables accurate runtime-compatibility checks, and aids debugging for Go applications. Commit reference: a68ddad256b50e235adaa3800086a90a50c96626 (Add pfelf support for go version detection (#424)).
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for Shopify/opentelemetry-ebpf-profiler: Implemented Go Version Detection in ELF binaries, enabling the profiler to read Go runtime version from ELF build info and expose it via the File.goVersion() API. This enhancement improves observability, enables accurate runtime-compatibility checks, and aids debugging for Go applications. Commit reference: a68ddad256b50e235adaa3800086a90a50c96626 (Add pfelf support for go version detection (#424)).
November 2024
2 Commits • 1 Features
Nov 1, 20242024-11 Monthly Summary for Shopify/opentelemetry-ebpf-profiler focusing on delivering observable improvements, resilience, and business value.
2 Commits • 1 Features
Nov 1, 20242024-11 Monthly Summary for Shopify/opentelemetry-ebpf-profiler focusing on delivering observable improvements, resilience, and business value.
November 2024
Activity
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Quality Metrics
Correctness92.6%
Maintainability91.2%
Architecture90.0%
Performance82.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
AssemblyCGoMakefileMarkdown
Technical Skills
Binary AnalysisBuild SystemsDocumentationEBPFELF ParsingELF parsingError HandlingGoGo Build InformationGo DevelopmentGo ToolchainGo programmingLog ManagementLow-level DevelopmentMemory Management
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