google/perfetto
Jan 2026 – Jun 2026
3 Months active
Languages Used
C++Pythonproto
Technical Skills
data parsingperformance analysisproto definitionAndroid DevelopmentC++Performance Analysis
Bogdan Floris
PROFILE
Bogdan Floris
Worked on the google/perfetto repository to deliver enhanced tracing and performance analysis features over a three-month period. Developed new proto fields and parsing logic to improve view capture data granularity, enabling more detailed performance insights. Advanced ProtoVM integration by implementing LayersPatchProto support and a new trace mode, allowing efficient merging of layer diffs and reducing tracing overhead. Addressed a critical bug in incremental state merging, improving data integrity and reliability for profiling pipelines. The work involved extensive use of C++, Protocol Buffers, and system design, with a focus on backend development, data parsing, and robust unit testing practices.
Overall Statistics
Feature vs Bugs
75%Features
Repository Contributions
5Total
Bugs
1
Commits
5
Features
3
Lines of code
369
Activity Months3
Your Network
261 peopleShared Repositories
261
Work History
June 2026
1 Commits
Jun 1, 2026June 2026 monthly summary: Primary focus was hardening Protovm incremental state merge robustness in google/perfetto. No new features were delivered this month; the volatility in incremental merges was reduced by addressing a critical bug related to deletion semantics when del_if_src_empty is active and skip_submessages is used. The fix ensures fields marked for deletion are properly removed and the deletion checks are reordered for empty source fields and submessages, improving reliability of incremental updates and data integrity in profiling pipelines.
1 Commits
Jun 1, 2026June 2026 monthly summary: Primary focus was hardening Protovm incremental state merge robustness in google/perfetto. No new features were delivered this month; the volatility in incremental merges was reduced by addressing a critical bug related to deletion semantics when del_if_src_empty is active and skip_submessages is used. The fix ensures fields marked for deletion are properly removed and the deletion checks are reordered for empty source fields and submessages, improving reliability of incremental updates and data integrity in profiling pipelines.
June 2026
April 2026
3 Commits • 2 Features
Apr 1, 2026In April 2026, delivered key tracing enhancements in google/perfetto to advance ProtoVM integration and surfaceflinger tracing capabilities. Implemented LayersPatchProto support to surface flinger diffs, introducing a new MODE_PROTOVM trace mode, allowing ProtoVM to merge layer diffs into LayersSnapshotProto for richer, lower-overhead tracing. Added ProtoVM merge skip_message_fields to bypass already-processed fields, enabling precise control over nested messages and improving performance for complex hierarchies. These changes unlock deeper visibility for ProtoVM-based tracing, reduce overhead, and improve maintainability by explicit field-level merge semantics. Demonstrated ability to coordinate cross-repo tracing improvements, evolve trace formats, and maintain compatibility with winscope extensions.
April 2026
3 Commits • 2 Features
Apr 1, 2026In April 2026, delivered key tracing enhancements in google/perfetto to advance ProtoVM integration and surfaceflinger tracing capabilities. Implemented LayersPatchProto support to surface flinger diffs, introducing a new MODE_PROTOVM trace mode, allowing ProtoVM to merge layer diffs into LayersSnapshotProto for richer, lower-overhead tracing. Added ProtoVM merge skip_message_fields to bypass already-processed fields, enabling precise control over nested messages and improving performance for complex hierarchies. These changes unlock deeper visibility for ProtoVM-based tracing, reduce overhead, and improve maintainability by explicit field-level merge semantics. Demonstrated ability to coordinate cross-repo tracing improvements, evolve trace formats, and maintain compatibility with winscope extensions.
January 2026
1 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for google/perfetto focusing on performance improvements through enhanced view capture data and parsing capabilities. Delivered a feature to extend view capture args with new fields and ensured trace processor compatibility, enabling more granular performance analysis.
1 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for google/perfetto focusing on performance improvements through enhanced view capture data and parsing capabilities. Delivered a feature to extend view capture args with new fields and ensured trace processor compatibility, enabling more granular performance analysis.
January 2026
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Quality Metrics
Correctness100.0%
Maintainability88.0%
Architecture96.0%
Performance88.0%
AI Usage24.0%
Skills & Technologies
Programming Languages
C++Pythonproto
Technical Skills
Android DevelopmentC++Performance AnalysisProtocol Buffersbackend developmentdata parsingdata structuresperformance analysisperformance optimizationproto definitionprotobufprotocol bufferssystem designunit testing
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