aquasecurity/tracee
Oct 2024 – Oct 2025
12 Months active
Languages Used
GoYAMLDockerfileMakefileMarkdownShellprotobufC
Technical Skills
BenchmarkingCode RefactoringDebuggingFile ParsingGoKernel Internals
Geyslan Gregório
PROFILE
Geyslan Gregório
Geyslan developed and maintained core observability and security features for the aquasecurity/tracee repository, focusing on eBPF tracing, backend performance, and robust CI/CD automation. Over twelve months, he engineered efficient process and event parsing, optimized memory and concurrency in Go, and modernized build systems for multi-architecture support. His work included refactoring utilities into a shared module, automating dependency management with Dependabot, and enhancing Kubernetes deployment workflows. By leveraging Go, C, and shell scripting, Geyslan improved runtime stability, reduced resource usage, and streamlined developer operations. The depth of his contributions ensured reliable, maintainable, and production-ready tracing for diverse environments.
Overall Statistics
Feature vs Bugs
73%Features
Repository Contributions
186Total
Bugs
24
Commits
186
Features
65
Lines of code
19,184
Activity Months12
Work History
October 2025
2 Commits • 1 Features
Oct 1, 2025Monthly summary for 2025-10 focusing on delivering stable, secure dependency management for aquasecurity/tracee. No major bug fixes reported this month; primary focus was automating dependency management and reintroducing Dependabot to improve security and stability.
2 Commits • 1 Features
Oct 1, 2025Monthly summary for 2025-10 focusing on delivering stable, secure dependency management for aquasecurity/tracee. No major bug fixes reported this month; primary focus was automating dependency management and reintroducing Dependabot to improve security and stability.
October 2025
September 2025
13 Commits • 3 Features
Sep 1, 2025September 2025 monthly summary for aquasecurity/tracee: Delivered substantial eBPF core library improvements, reliability gains in BTF tooling, corrected Event ID sequencing, and CI/build enhancements. These changes reduce build/release risk, improve runtime stability, and boost data processing performance, delivering clear business value through faster, more reliable observability tooling.
September 2025
13 Commits • 3 Features
Sep 1, 2025September 2025 monthly summary for aquasecurity/tracee: Delivered substantial eBPF core library improvements, reliability gains in BTF tooling, corrected Event ID sequencing, and CI/build enhancements. These changes reduce build/release risk, improve runtime stability, and boost data processing performance, delivering clear business value through faster, more reliable observability tooling.
August 2025
2 Commits • 2 Features
Aug 1, 2025August 2025 (2025-08) monthly summary for aquasecurity/tracee: Key features delivered: - Common module relocation: relocated utility packages (logger, errfmt, cgroup, filehash, capabilities, time utilities) into a new shared 'common' module; updated Makefile and documentation to reflect the change, improving maintainability and code reuse. Commit: 9691834114a251056429410b49a0b339cdd6c155. - Build automation: added a go-tidy rule to Makefile to run 'go mod tidy' across all go.mod files (root and subdirectories) to ensure dependency consistency. Commit: e06d71e93c1d7401e4c888c65782d2d0fef0d496. Major bugs fixed: - No major bugs fixed this month; focus was on refactor and build hygiene. Overall impact and accomplishments: - Improved code organization and maintainability by centralizing utilities in a common module, reducing duplication and simplifying future enhancements. - Strengthened build reliability and consistency across the workspace through automated dependency hygiene, enabling faster and more predictable CI. Technologies/skills demonstrated: - Go module management, Makefile automation, monorepo maintenance, and deliberate refactoring with documentation updates. Business value: - Lower maintenance costs, reduced risk of dependency drift, and faster onboarding for new contributors, leading to more stable releases and quicker iteration cycles.
2 Commits • 2 Features
Aug 1, 2025August 2025 (2025-08) monthly summary for aquasecurity/tracee: Key features delivered: - Common module relocation: relocated utility packages (logger, errfmt, cgroup, filehash, capabilities, time utilities) into a new shared 'common' module; updated Makefile and documentation to reflect the change, improving maintainability and code reuse. Commit: 9691834114a251056429410b49a0b339cdd6c155. - Build automation: added a go-tidy rule to Makefile to run 'go mod tidy' across all go.mod files (root and subdirectories) to ensure dependency consistency. Commit: e06d71e93c1d7401e4c888c65782d2d0fef0d496. Major bugs fixed: - No major bugs fixed this month; focus was on refactor and build hygiene. Overall impact and accomplishments: - Improved code organization and maintainability by centralizing utilities in a common module, reducing duplication and simplifying future enhancements. - Strengthened build reliability and consistency across the workspace through automated dependency hygiene, enabling faster and more predictable CI. Technologies/skills demonstrated: - Go module management, Makefile automation, monorepo maintenance, and deliberate refactoring with documentation updates. Business value: - Lower maintenance costs, reduced risk of dependency drift, and faster onboarding for new contributors, leading to more stable releases and quicker iteration cycles.
August 2025
June 2025
13 Commits • 4 Features
Jun 1, 2025June 2025 highlights for aquasecurity/tracee: Delivered CI/CD stabilization with CodeQL policy, introduced Tracee runtime management tools, strengthened multi-architecture build robustness, upgraded core dependencies for stability, and enhanced integration test reliability. These changes reduced CI noise, improved security scanning consistency, streamlined operations, and increased cross-environment stability and test confidence, enabling faster, more reliable deployments.
June 2025
13 Commits • 4 Features
Jun 1, 2025June 2025 highlights for aquasecurity/tracee: Delivered CI/CD stabilization with CodeQL policy, introduced Tracee runtime management tools, strengthened multi-architecture build robustness, upgraded core dependencies for stability, and enhanced integration test reliability. These changes reduced CI noise, improved security scanning consistency, streamlined operations, and increased cross-environment stability and test confidence, enabling faster, more reliable deployments.
May 2025
13 Commits • 4 Features
May 1, 2025May 2025 focused on stabilizing and enhancing the tracee EBPF tracing stack, tightening security checks, and improving developer efficiency through maintainability improvements and CI/CD hardening. Delivered targeted fixes and performance gains across core tracing and utilities, reduced unnecessary event streaming, and strengthened Kubernetes token handling. These changes improve runtime reliability in diverse kernel environments, speed up event decoding, and streamline CI workflows, contributing to stronger product stability and faster iteration cycles for customers.
13 Commits • 4 Features
May 1, 2025May 2025 focused on stabilizing and enhancing the tracee EBPF tracing stack, tightening security checks, and improving developer efficiency through maintainability improvements and CI/CD hardening. Delivered targeted fixes and performance gains across core tracing and utilities, reduced unnecessary event streaming, and strengthened Kubernetes token handling. These changes improve runtime reliability in diverse kernel environments, speed up event decoding, and streamline CI workflows, contributing to stronger product stability and faster iteration cycles for customers.
May 2025
April 2025
11 Commits • 5 Features
Apr 1, 2025April 2025 monthly summary for aquasecurity/tracee focused on stability, security, and release readiness. Delivered cross-module dependency and toolchain modernization, aligned to security and compatibility requirements; prepared the 0.23.1 release by updating Kubernetes manifests and Helm charts; improved automation for dependency monitoring; fixed kernel-compatibility edge cases for x86 FRED; and optimized eBPF code to reduce object file size and improve performance. The work enhances reliability in production, accelerates future releases, and reinforces maintainability across the tracee stack.
April 2025
11 Commits • 5 Features
Apr 1, 2025April 2025 monthly summary for aquasecurity/tracee focused on stability, security, and release readiness. Delivered cross-module dependency and toolchain modernization, aligned to security and compatibility requirements; prepared the 0.23.1 release by updating Kubernetes manifests and Helm charts; improved automation for dependency monitoring; fixed kernel-compatibility edge cases for x86 FRED; and optimized eBPF code to reduce object file size and improve performance. The work enhances reliability in production, accelerates future releases, and reinforces maintainability across the tracee stack.
March 2025
13 Commits • 3 Features
Mar 1, 2025March 2025 monthly summary focusing on key accomplishments for aquasecurity/tracee. This period delivered targeted improvements in dependency management, toolchain stabilization, developer tooling, and CI/test reliability, aligning with security, stability, and developer productivity goals. Key outcomes included a consolidated dependency management and Go toolchain upgrade initiative, a critical eBPF stability fix, enhanced developer tooling, and CI/test reliability improvements that reduced flaky tests and accelerated feedback cycles.
13 Commits • 3 Features
Mar 1, 2025March 2025 monthly summary focusing on key accomplishments for aquasecurity/tracee. This period delivered targeted improvements in dependency management, toolchain stabilization, developer tooling, and CI/test reliability, aligning with security, stability, and developer productivity goals. Key outcomes included a consolidated dependency management and Go toolchain upgrade initiative, a critical eBPF stability fix, enhanced developer tooling, and CI/test reliability improvements that reduced flaky tests and accelerated feedback cycles.
March 2025
February 2025
42 Commits • 11 Features
Feb 1, 2025February 2025 (aquasecurity/tracee) - Performance and reliability drive: - Delivered targeted performance and stability improvements in the proc and proctree components, resulting in more efficient status file parsing, namespace handling, and safer construction patterns. - Introduced a builders-based approach for complex structures with explicit fields, enabling safer construction and clearer code paths. - Upgraded the Go toolchain to 1.24, unlocking performance benefits and Go ecosystem improvements, with documented reductions in CPU, heap usage, and object allocations. - Hardened release and build processes for Kubernetes releases (v0.22.6 and v0.23.0), improved go.mod compatibility, and upgraded lint/CI tooling to raise quality and reliability. - Implemented key CI/quality improvements (CodeQL fixes, aborted builds on code-check errors, and lint rule updates) to reduce post-commit risk and improve developer feedback loops. Business impact: Faster and more predictable traces with lower resource usage, safer kernel/userland interactions, quicker release cycles for Kubernetes deployments, and higher developer productivity through safer construction patterns and stronger static analysis.
February 2025
42 Commits • 11 Features
Feb 1, 2025February 2025 (aquasecurity/tracee) - Performance and reliability drive: - Delivered targeted performance and stability improvements in the proc and proctree components, resulting in more efficient status file parsing, namespace handling, and safer construction patterns. - Introduced a builders-based approach for complex structures with explicit fields, enabling safer construction and clearer code paths. - Upgraded the Go toolchain to 1.24, unlocking performance benefits and Go ecosystem improvements, with documented reductions in CPU, heap usage, and object allocations. - Hardened release and build processes for Kubernetes releases (v0.22.6 and v0.23.0), improved go.mod compatibility, and upgraded lint/CI tooling to raise quality and reliability. - Implemented key CI/quality improvements (CodeQL fixes, aborted builds on code-check errors, and lint rule updates) to reduce post-commit risk and improve developer feedback loops. Business impact: Faster and more predictable traces with lower resource usage, safer kernel/userland interactions, quicker release cycles for Kubernetes deployments, and higher developer productivity through safer construction patterns and stronger static analysis.
January 2025
51 Commits • 21 Features
Jan 1, 2025January 2025 performance and reliability sprint for aquasecurity/tracee focused on benchmarking expansion, performance tuning, and CI/infra improvements. Delivered substantial benchmarking coverage, including DecodeArguments and ProcTree benchmarks across fork/exec/exit paths, resulting in measurable reductions in lock contention and improved concurrency. Implemented feed pools and memory layout optimizations in proctree, updated default cache sizes, and aligned proc fields, driving improved throughput and lower memory footprint. Strengthened CI and tooling with Dependabot, Kubernetes tooling updates, API/types bumps, enhanced dashboards, and more robust end-to-end testing. Addressed critical bugs in parsers, e2e tests, and CI pipelines to improve stability and reliability. These efforts collectively deliver faster release cycles, better runtime performance under load, and easier observability and maintenance.
51 Commits • 21 Features
Jan 1, 2025January 2025 performance and reliability sprint for aquasecurity/tracee focused on benchmarking expansion, performance tuning, and CI/infra improvements. Delivered substantial benchmarking coverage, including DecodeArguments and ProcTree benchmarks across fork/exec/exit paths, resulting in measurable reductions in lock contention and improved concurrency. Implemented feed pools and memory layout optimizations in proctree, updated default cache sizes, and aligned proc fields, driving improved throughput and lower memory footprint. Strengthened CI and tooling with Dependabot, Kubernetes tooling updates, API/types bumps, enhanced dashboards, and more robust end-to-end testing. Addressed critical bugs in parsers, e2e tests, and CI pipelines to improve stability and reliability. These efforts collectively deliver faster release cycles, better runtime performance under load, and easier observability and maintenance.
January 2025
December 2024
18 Commits • 8 Features
Dec 1, 2024December 2024 delivered API compatibility and dependency upgrades for Tracee, expanded diagnostics, and targeted reliability improvements, while accelerating release velocity through enhanced CI/CD practices. Key engineering efforts focused on API consistency, observability, testing tooling, and performance/memory optimizations, underpinned by code quality and maintainability improvements.
December 2024
18 Commits • 8 Features
Dec 1, 2024December 2024 delivered API compatibility and dependency upgrades for Tracee, expanded diagnostics, and targeted reliability improvements, while accelerating release velocity through enhanced CI/CD practices. Key engineering efforts focused on API consistency, observability, testing tooling, and performance/memory optimizations, underpinned by code quality and maintainability improvements.
November 2024
3 Commits • 2 Features
Nov 1, 2024Month 2024-11 focused on delivering a production-ready Tracee with performance optimizations and streamlined deployment. Key work includes benchmarking alignment with the public Set API, memory-usage optimizations in the proctree benchmark path, and a 0.22.4 deployment readiness update via Kubernetes and Helm configurations. These changes reduce allocations, improve benchmark reliability, and ensure production deployments run on the latest stable release.
3 Commits • 2 Features
Nov 1, 2024Month 2024-11 focused on delivering a production-ready Tracee with performance optimizations and streamlined deployment. Key work includes benchmarking alignment with the public Set API, memory-usage optimizations in the proctree benchmark path, and a 0.22.4 deployment readiness update via Kubernetes and Helm configurations. These changes reduce allocations, improve benchmark reliability, and ensure production deployments run on the latest stable release.
November 2024
October 2024
5 Commits • 1 Features
Oct 1, 2024October 2024 — Focused improvements on proc data parsing in aquasecurity/tracee to boost throughput and reliability. Implemented targeted performance optimizations for parsing /proc/status and /proc/stat, introduced benchmarks (newProcStatus/newProcStat), and reduced memory footprint for per-event parsing. Additionally, corrected a type mismatch in time conversion for /proc/stat ticks to uint64, ensuring accurate nanoseconds since boot. These changes deliver higher event rates in production with lower resource usage and improved data accuracy for security telemetry.
October 2024
5 Commits • 1 Features
Oct 1, 2024October 2024 — Focused improvements on proc data parsing in aquasecurity/tracee to boost throughput and reliability. Implemented targeted performance optimizations for parsing /proc/status and /proc/stat, introduced benchmarks (newProcStatus/newProcStat), and reduced memory footprint for per-event parsing. Additionally, corrected a type mismatch in time conversion for /proc/stat ticks to uint64, ensuring accurate nanoseconds since boot. These changes deliver higher event rates in production with lower resource usage and improved data accuracy for security telemetry.
Activity
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Quality Metrics
Correctness93.8%
Maintainability92.2%
Architecture89.0%
Performance90.8%
AI Usage20.4%
Skills & Technologies
Programming Languages
CCSSDockerfileGoHTMLJavaScriptMakefileMarkdownShellTOML
Technical Skills
API DevelopmentAPI IntegrationAutomationBPFBackend DevelopmentBenchmarkingBitwise OperationsBuffer ManipulationBuild AutomationBuild SystemBuild SystemsCC DevelopmentC ProgrammingC/C++
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