google/perfetto
Apr 2025 – Jun 2025
3 Months active
Languages Used
C++
Technical Skills
Algorithm ImplementationC++C++ DevelopmentCode FormattingData StructuresSoftware Design
Kean Mariotti
PROFILE
Kean Mariotti
Over three months, contributed foundational enhancements to the google/perfetto repository by building a new intrusive tree data structure for efficient in-memory data management and refactoring code to improve maintainability. Applied C++ and modern software design principles to implement and rigorously test these features, drawing on BSD kernel concepts for robust data handling. Addressed build system stability by resolving a Chromium integration issue through targeted header cleanup, ensuring seamless builds without altering core functionality. Further improved memory management by refactoring the SlabAllocator, introducing precise tracking mechanisms to prevent allocation errors and laying groundwork for safer, more reliable low-level programming in C++.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
4Total
Bugs
2
Commits
4
Features
2
Lines of code
807
Activity Months3
Your Network
261 peopleShared Repositories
261
Work History
June 2025
1 Commits
Jun 1, 2025June 2025 monthly summary for google/perfetto: Focused on correctness and stability of memory management. Delivered a critical SlabAllocator fix by removing the IntrusiveList::size dependency and introducing slabs_non_full_size_ to accurately track the non-full slab list, preventing miscounts during allocation/deallocation. This refactor reduces allocator risk and lays groundwork for broader IntrusiveList interface improvements to improve node management and allocator reliability. Commit 93ed112c79635ec9af867ef87837faebb46c60a5 under #1751.
1 Commits
Jun 1, 2025June 2025 monthly summary for google/perfetto: Focused on correctness and stability of memory management. Delivered a critical SlabAllocator fix by removing the IntrusiveList::size dependency and introducing slabs_non_full_size_ to accurately track the non-full slab list, preventing miscounts during allocation/deallocation. This refactor reduces allocator risk and lays groundwork for broader IntrusiveList interface improvements to improve node management and allocator reliability. Commit 93ed112c79635ec9af867ef87837faebb46c60a5 under #1751.
June 2025
May 2025
1 Commits
May 1, 2025May 2025: Slab Allocator Build Stabilization in Chromium — removed an unnecessary include of sys/mman.h from slab_allocator.h to fix a Chromium build issue while preserving core functionality. Commit c808ae389deaddc866a34903552d5b186a000539 (protovm: fix chromium build (#1444)).
May 2025
1 Commits
May 1, 2025May 2025: Slab Allocator Build Stabilization in Chromium — removed an unnecessary include of sys/mman.h from slab_allocator.h to fix a Chromium build issue while preserving core functionality. Commit c808ae389deaddc866a34903552d5b186a000539 (protovm: fix chromium build (#1444)).
April 2025
2 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary for google/perfetto: Focused on delivering core data-structure capabilities and improving code quality to support scalable tracing workflows. Key features delivered include a new intrusive tree data structure added to the base library, enabling more efficient in-memory data management for tracing data, and a code quality improvement that refactored ftrace_tokenizer.cc formatting to enhance readability and maintainability. There were no major user-facing bug fixes this month; the team prioritized robust feature delivery and code cleanliness to reduce technical debt and pave the way for future performance improvements. Overall impact: foundational enhancements that improve data handling efficiency, reliability, and code health, with demonstrated proficiency in C++, testing, and modern C++ design patterns. Technologies/skills demonstrated: C++, unit testing, in-memory data structures, code formatting and code quality discipline, BSD kernel–inspired data-structure concepts, tracing internals.
2 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary for google/perfetto: Focused on delivering core data-structure capabilities and improving code quality to support scalable tracing workflows. Key features delivered include a new intrusive tree data structure added to the base library, enabling more efficient in-memory data management for tracing data, and a code quality improvement that refactored ftrace_tokenizer.cc formatting to enhance readability and maintainability. There were no major user-facing bug fixes this month; the team prioritized robust feature delivery and code cleanliness to reduce technical debt and pave the way for future performance improvements. Overall impact: foundational enhancements that improve data handling efficiency, reliability, and code health, with demonstrated proficiency in C++, testing, and modern C++ design patterns. Technologies/skills demonstrated: C++, unit testing, in-memory data structures, code formatting and code quality discipline, BSD kernel–inspired data-structure concepts, tracing internals.
April 2025
Activity
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Quality Metrics
Correctness95.0%
Maintainability95.0%
Architecture95.0%
Performance95.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++
Technical Skills
Algorithm ImplementationBuild SystemsC++C++ DevelopmentCode FormattingData StructuresLow-level ProgrammingMemory ManagementSoftware Design
Repositories Contributed To
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