google/perfetto
May 2025 – Dec 2025
3 Months active
Languages Used
C++TypeScriptSQL
Technical Skills
Command-line toolsDebuggingSystem programmingTypeScriptUI/UX designfront end development
Nick Chameyev
PROFILE
Nick Chameyev
Over a three-month period, contributed to google/perfetto by enhancing Java heap profiling workflows, improving Android Logcat UI usability, and increasing the reliability of heap analysis. Work included extending traceconv’s support for Java heap profiles with new command-line options and validation logic, using C++ and system programming skills to streamline data capture and error reporting. On the front end, delivered TypeScript-based UI improvements and introduced a plugin for hierarchical track navigation, clarifying log data presentation. Additionally, implemented deterministic sorting of GC roots in the heap flamegraph, leveraging SQL and unit testing to ensure stable, repeatable heap-dump comparisons for performance investigations.
Overall Statistics
Feature vs Bugs
80%Features
Repository Contributions
6Total
Bugs
1
Commits
6
Features
4
Lines of code
534
Activity Months3
Your Network
5258 peopleSame Organization
@google.com4997
Benedict OdaiMember
Craig IngramMember
KayyuriMember
Scott SuarezMember
Agent2Agent (A2A) BotMember
Andreas AbelMember
Aadi KapurMember
Aadish GoelMember
Aahil MehtaMember
Shared Repositories
261
Work History
December 2025
1 Commits • 1 Features
Dec 1, 2025In December 2025, google/perfetto delivered a deterministic sorting enhancement for GC roots in the heap flamegraph, improving stability of heap-dump comparisons and reducing nondeterministic root selection. This focused change, implemented with minimal performance impact, enables repeatable analysis across dumps and strengthens reliability for performance investigations.
1 Commits • 1 Features
Dec 1, 2025In December 2025, google/perfetto delivered a deterministic sorting enhancement for GC roots in the heap flamegraph, improving stability of heap-dump comparisons and reducing nondeterministic root selection. This focused change, implemented with minimal performance impact, enables repeatable analysis across dumps and strengthens reliability for performance investigations.
December 2025
October 2025
4 Commits • 2 Features
Oct 1, 20252025-10 Monthly Summary: Delivered Android Logcat UI enhancements, introduced a Track Hierarchy Plugin, and fixed a data presentation bug in the Logcat UI. These changes improved debugging efficiency and data clarity across Android logs and track navigation.
October 2025
4 Commits • 2 Features
Oct 1, 20252025-10 Monthly Summary: Delivered Android Logcat UI enhancements, introduced a Track Hierarchy Plugin, and fixed a data presentation bug in the Logcat UI. These changes improved debugging efficiency and data clarity across Android logs and track navigation.
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 performance summary for google/perfetto: Implemented Java heap profiling enhancement in traceconv. Enabled --pid and --timestamps for java_heap_profile format; extended validation to include java_heap_profile alongside profile and hprof; refined error messaging to accurately reflect supported formats. This work reduces friction for Java heap profiling workflows and improves diagnosability, enabling developers to capture and validate heap data more precisely.
1 Commits • 1 Features
May 1, 2025May 2025 performance summary for google/perfetto: Implemented Java heap profiling enhancement in traceconv. Enabled --pid and --timestamps for java_heap_profile format; extended validation to include java_heap_profile alongside profile and hprof; refined error messaging to accurately reflect supported formats. This work reduces friction for Java heap profiling workflows and improves diagnosability, enabling developers to capture and validate heap data more precisely.
May 2025
Activity
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Quality Metrics
Correctness100.0%
Maintainability93.4%
Architecture96.6%
Performance93.4%
AI Usage23.4%
Skills & Technologies
Programming Languages
C++SQLTypeScript
Technical Skills
C++ developmentCommand-line toolsDebuggingSQLSystem programmingTypeScriptUI/UX designfront end developmentperformance optimizationplugin developmentsoftware architectureunit testing
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