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Sean

PROFILE

Sean

Worked on the google/perfetto repository to enhance memory telemetry by integrating MEMINFO ETW events into the Perfetto tracing system for Windows. Developed new protocol buffer messages in protobuf to model detailed memory information, enabling richer capture and analysis of memory-related performance data within Chrome traces. Focused on upstream changes to Perfetto protos, the work improved system tracing capabilities and facilitated more effective performance analysis and memory optimization across Windows deployments. The engineering effort centered on feature delivery rather than bug fixes, demonstrating skills in system tracing, performance analysis, and protocol buffer design to support advanced memory analytics in production environments.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

1Total
Bugs
0
Commits
1
Features
1
Lines of code
90
Activity Months1

Work History

August 2025

1 Commits • 1 Features

Aug 1, 2025

2025-08 Monthly Summary for google/perfetto: Focused on delivering memory telemetry enhancements by adding MEMINFO ETW events to Perfetto tracing for Windows ETW, enabling capture and analysis of memory-related performance data in Chrome traces. Implemented new protocol buffer messages to model memory information and integrated them into the Perfetto tracing flow. This feature establishes richer memory visibility for performance investigations and memory optimization across Windows deployments. No major bugs fixed this month; emphasis was on feature delivery and upstream proto changes with clear business value: enhanced memory telemetry for faster diagnosis and optimization. Technologies/skills demonstrated include ETW, Windows tracing, Perfetto protocol buffers, and Chrome performance tracing.

Activity

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Quality Metrics

Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance80.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

protobuf

Technical Skills

Performance AnalysisProtocol BuffersSystem Tracing

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

google/perfetto

Aug 2025 Aug 2025
1 Month active

Languages Used

protobuf

Technical Skills

Performance AnalysisProtocol BuffersSystem Tracing