google/tcmalloc
Jul 2025 – Sep 2025
3 Months active
Languages Used
C++
Technical Skills
Code RefactoringMemory ManagementPerformance OptimizationSystem ProgrammingBuild SystemC++
Ben Reisner
PROFILE
Ben Reisner
Ben Reisner contributed to the google/tcmalloc repository by developing features and improvements focused on memory management, code maintainability, and observability. He enhanced memory efficiency by enabling reclamation of non-hugepage-backed and swapped memory, refactored hugepage statistics for better monitoring, and introduced telemetry to track span lifecycles. Ben also improved code hygiene by standardizing TODO formats and simplifying function signatures, while strengthening memory safety with additional overflow checks. His work included experimental optimizations such as extending Central Freelist priority lists for finer allocation bucketing. Throughout, he applied C++ expertise, low-level programming, and performance optimization to deliver robust, maintainable system programming solutions.
Overall Statistics
Feature vs Bugs
75%Features
Repository Contributions
9Total
Bugs
2
Commits
9
Features
6
Lines of code
1,494
Activity Months3
Your Network
4183 people
Work History
September 2025
3 Commits • 2 Features
Sep 1, 2025September 2025 monthly summary for google/tcmalloc focused on feature experiments, code simplification, and telemetry improvements to enhance configurability, maintainability, and observability.
3 Commits • 2 Features
Sep 1, 2025September 2025 monthly summary for google/tcmalloc focused on feature experiments, code simplification, and telemetry improvements to enhance configurability, maintainability, and observability.
September 2025
August 2025
4 Commits • 2 Features
Aug 1, 2025August 2025: google/tcmalloc — Focused on codebase hygiene, memory safety, and experimental optimization. Delivered standardized TODO formats across TCMalloc experiments and golden tests, strengthened memory correctness with overflow checks and a build integrity fix, and launched an experimental extension of Central Freelist priority lists to support finer bucketing for allocations. These efforts improve developer productivity, reduce defect risk, and lay groundwork for potential allocation performance gains.
August 2025
4 Commits • 2 Features
Aug 1, 2025August 2025: google/tcmalloc — Focused on codebase hygiene, memory safety, and experimental optimization. Delivered standardized TODO formats across TCMalloc experiments and golden tests, strengthened memory correctness with overflow checks and a build integrity fix, and launched an experimental extension of Central Freelist priority lists to support finer bucketing for allocations. These efforts improve developer productivity, reduce defect risk, and lay groundwork for potential allocation performance gains.
July 2025
2 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for google/tcmalloc focusing on memory efficiency improvements and observability enhancements through two feature deliveries. Delivered two key features to improve memory reclaim, memory accounting, and telemetry. No major bugs fixed this month; primary effort centered on feature delivery, instrumentation, and maintainability. These changes contribute to better memory utilization, reduced swap pressure, and easier performance monitoring for large-scale deployments.
2 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for google/tcmalloc focusing on memory efficiency improvements and observability enhancements through two feature deliveries. Delivered two key features to improve memory reclaim, memory accounting, and telemetry. No major bugs fixed this month; primary effort centered on feature delivery, instrumentation, and maintainability. These changes contribute to better memory utilization, reduced swap pressure, and easier performance monitoring for large-scale deployments.
July 2025
Activity
Loading activity data...
Quality Metrics
Correctness96.6%
Maintainability95.6%
Architecture93.4%
Performance90.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++
Technical Skills
Build SystemC++C++ DevelopmentCode MaintenanceCode RefactoringConfiguration ManagementDebuggingLow-Level ProgrammingMemory ManagementPerformance MonitoringPerformance OptimizationSoftware EngineeringSystem ProgrammingTelemetry
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline