google/perfetto
Jul 2025 – Feb 2026
2 Months active
Languages Used
c++javaprotopython
Technical Skills
Build SystemsEmbedded SystemsProtocol BuffersSystem Programminginput device managementprotocol buffer design
Harry Cutts
PROFILE
Harry Cutts
During their work on the google/perfetto repository, H. Cutts developed end-to-end kernel input event tracing enhancements, focusing on expanding trace data coverage and improving kernel-level observability. They introduced a Protocol Buffer definition for Linux evdev input events and integrated it into build systems and trace packet structures using C++ and proto. Cutts further extended the protocol to support device lifecycle events, adding structures for input device properties and states to enable dynamic device management and more accurate event interpretation. Their contributions improved trace reliability and debugging, demonstrating depth in protocol buffer design, embedded systems, and system programming within a collaborative workflow.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
2Total
Bugs
0
Commits
2
Features
2
Lines of code
352
Activity Months2
Your Network
4595 peopleSame Organization
@google.com4362
Benedict OdaiMember
Craig IngramMember
KayyuriMember
Scott SuarezMember
Agent2Agent (A2A) BotMember
Andreas AbelMember
Aadi KapurMember
Aadish GoelMember
Aahil MehtaMember
Shared Repositories
233
Work History
February 2026
1 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for google/perfetto: Delivered Evdev Device Lifecycle Event Support, introducing device addition/removal events in the evdev protocol and new structures to represent input device properties and states. This enables accurate interpretation of InputEvents and dynamic device management, improving tracing fidelity and debugging capabilities. Work aligns with the bug resolution for InputEvents context (b/394861376) and integrates with the protos changes to support lifecycle events. The changes are committed as protos: Add evdev device addition and removal events (#4872) with commit c82fb577c5b0e0100da838161757d37851514ffb. Impact highlights: - Improved reliability and readability of input-event traces across dynamic devices. - Faster root-cause analysis for device-related issues in perfetto traces. - Strengthened end-to-end traceability from evdev device state changes to InputEvents, enabling better performance analysis. Technologies/skills demonstrated: protocol buffers (protos), evdev protocol, trace event modeling, version control (git), code review and collaboration.
1 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for google/perfetto: Delivered Evdev Device Lifecycle Event Support, introducing device addition/removal events in the evdev protocol and new structures to represent input device properties and states. This enables accurate interpretation of InputEvents and dynamic device management, improving tracing fidelity and debugging capabilities. Work aligns with the bug resolution for InputEvents context (b/394861376) and integrates with the protos changes to support lifecycle events. The changes are committed as protos: Add evdev device addition and removal events (#4872) with commit c82fb577c5b0e0100da838161757d37851514ffb. Impact highlights: - Improved reliability and readability of input-event traces across dynamic devices. - Faster root-cause analysis for device-related issues in perfetto traces. - Strengthened end-to-end traceability from evdev device state changes to InputEvents, enabling better performance analysis. Technologies/skills demonstrated: protocol buffers (protos), evdev protocol, trace event modeling, version control (git), code review and collaboration.
February 2026
July 2025
1 Commits • 1 Features
Jul 1, 2025July 2025 monthly performance summary for google/perfetto focused on delivering end-to-end kernel input event tracing enhancement and strengthening the observability stack. The work aligns with product goals to expand trace data coverage and improve kernel-level visibility for users and developers.
July 2025
1 Commits • 1 Features
Jul 1, 2025July 2025 monthly performance summary for google/perfetto focused on delivering end-to-end kernel input event tracing enhancement and strengthening the observability stack. The work aligns with product goals to expand trace data coverage and improve kernel-level visibility for users and developers.
Activity
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Quality Metrics
Correctness100.0%
Maintainability90.0%
Architecture100.0%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
c++javaprotopython
Technical Skills
Build SystemsEmbedded SystemsProtocol BuffersSystem Programminginput device managementprotocol buffer designsystem programming
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