google/perfetto
Oct 2024 – Oct 2025
13 Months active
Languages Used
C++JavaScriptPythonSCSSTypeScriptShellprotobufMarkdown
Technical Skills
Asynchronous ProgrammingBug FixClass-based ComponentsCode AnalysisCode OrganizationDependency Management
Primiano Tucci
PROFILE
Primiano Tucci
Primiano worked extensively on the google/perfetto repository, delivering robust tracing, UI, and infrastructure improvements over 13 months. He engineered features such as cross-platform lock-free task execution, plugin-driven UI architecture, and Recording V2, focusing on maintainability and performance. Using C++, TypeScript, and Python, Primiano refactored core APIs, stabilized CI/CD pipelines, and enhanced cross-device input handling. His technical approach emphasized modularity, code quality, and test reliability, addressing concurrency, build system modernization, and frontend usability. The depth of his work is reflected in thoughtful API design, rigorous debugging, and continuous integration enhancements, resulting in a more reliable and scalable tracing platform.
Overall Statistics
Feature vs Bugs
72%Features
Repository Contributions
175Total
Bugs
29
Commits
175
Features
74
Lines of code
55,834
Activity Months13
Your Network
4376 people
Work History
October 2025
2 Commits • 1 Features
Oct 1, 20252025-10 monthly summary for google/perfetto focusing on key features delivered, bugs fixed, impact, and skills demonstrated.
2 Commits • 1 Features
Oct 1, 20252025-10 monthly summary for google/perfetto focusing on key features delivered, bugs fixed, impact, and skills demonstrated.
October 2025
September 2025
7 Commits • 3 Features
Sep 1, 2025Performance reviews-ready monthly summary for google/perfetto (September 2025). Focused on delivering cross-platform lock-free task execution, API maintainability, test stability, and governance improvements that collectively raise robustness, throughput potential, and code quality.
September 2025
7 Commits • 3 Features
Sep 1, 2025Performance reviews-ready monthly summary for google/perfetto (September 2025). Focused on delivering cross-platform lock-free task execution, API maintainability, test stability, and governance improvements that collectively raise robustness, throughput potential, and code quality.
August 2025
11 Commits • 4 Features
Aug 1, 20252025-08 monthly summary for google/perfetto focused on cross-platform RTMutex adoption, stability improvements, and codebase simplification. Highlights include real-time mutex policy unification, Chromium build considerations, enhanced TaskRunner tests, and foundational utilities introduced to simplify future optimizations.
11 Commits • 4 Features
Aug 1, 20252025-08 monthly summary for google/perfetto focused on cross-platform RTMutex adoption, stability improvements, and codebase simplification. Highlights include real-time mutex policy unification, Chromium build considerations, enhanced TaskRunner tests, and foundational utilities introduced to simplify future optimizations.
August 2025
July 2025
7 Commits • 3 Features
Jul 1, 2025July 2025: Focused on strengthening tracing debugging workflows, cross-platform stability, and contributor experience. Delivered a new tracing debugging tutorial, improved trace download UX with a file picker and fixed a postmessage bug, resolved a macOS build issue, and updated project docs and contributor guides to streamline collaboration and governance. These changes deliver tangible business value by enabling faster diagnosis of performance regressions, safer cross-platform builds, and clearer contributor pathways.
July 2025
7 Commits • 3 Features
Jul 1, 2025July 2025: Focused on strengthening tracing debugging workflows, cross-platform stability, and contributor experience. Delivered a new tracing debugging tutorial, improved trace download UX with a file picker and fixed a postmessage bug, resolved a macOS build issue, and updated project docs and contributor guides to streamline collaboration and governance. These changes deliver tangible business value by enabling faster diagnosis of performance regressions, safer cross-platform builds, and clearer contributor pathways.
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 performance summary for google/perfetto focused on delivering cross-device input capabilities, stabilizing builds, and strengthening cross-platform usability. Highlights include a new touchscreen input workflow and a critical macOS build fix that removed a frequent failure point, with concrete commits guiding future work.
2 Commits • 1 Features
Jun 1, 2025June 2025 performance summary for google/perfetto focused on delivering cross-device input capabilities, stabilizing builds, and strengthening cross-platform usability. Highlights include a new touchscreen input workflow and a critical macOS build fix that removed a frequent failure point, with concrete commits guiding future work.
June 2025
May 2025
27 Commits • 14 Features
May 1, 2025May 2025 monthly summary for google/perfetto focused on delivering business value through improved platform support, robust CI pipelines, and maintainable repository hygiene. The month consolidated feature work, stabilized test and validation pipelines, and modernized workflows to shorten feedback loops and reduce toil.
May 2025
27 Commits • 14 Features
May 1, 2025May 2025 monthly summary for google/perfetto focused on delivering business value through improved platform support, robust CI pipelines, and maintainable repository hygiene. The month consolidated feature work, stabilized test and validation pipelines, and modernized workflows to shorten feedback loops and reduce toil.
April 2025
28 Commits • 8 Features
Apr 1, 2025April 2025 performance highlights for google/perfetto: Strengthened governance, CI reliability, and developer tooling to accelerate feature delivery while improving quality. Delivered end-to-end improvements across CODEOWNERS governance, PR/workflow handling, and code formatting tooling; expanded presubmit tooling and CI workflows; and refreshed build/runtime environments. Implemented a UI bug fix and a Perfetto dev server encoding change to optimize user experience and delivery efficiency. These changes reduce PR cycle times, increase reliability, and enable faster safe deployments across Linux Cloud Build and local development.
28 Commits • 8 Features
Apr 1, 2025April 2025 performance highlights for google/perfetto: Strengthened governance, CI reliability, and developer tooling to accelerate feature delivery while improving quality. Delivered end-to-end improvements across CODEOWNERS governance, PR/workflow handling, and code formatting tooling; expanded presubmit tooling and CI workflows; and refreshed build/runtime environments. Implemented a UI bug fix and a Perfetto dev server encoding change to optimize user experience and delivery efficiency. These changes reduce PR cycle times, increase reliability, and enable faster safe deployments across Linux Cloud Build and local development.
April 2025
March 2025
7 Commits • 2 Features
Mar 1, 2025Concise monthly summary for 2025-03 covering the google/perfetto repository. Delivered user-facing features, resolved CI stability issues, and modernized the CI/CD pipeline, resulting in improved collaboration, faster feedback cycles, and more reliable builds and tests.
March 2025
7 Commits • 2 Features
Mar 1, 2025Concise monthly summary for 2025-03 covering the google/perfetto repository. Delivered user-facing features, resolved CI stability issues, and modernized the CI/CD pipeline, resulting in improved collaboration, faster feedback cycles, and more reliable builds and tests.
February 2025
8 Commits • 4 Features
Feb 1, 2025February 2025 monthly summary for google/perfetto. Focused on delivering core tracing reliability and data enrichment, improved bug-reporting controls with per-app Atrace targeting, UI usability enhancements, and test performance improvements. These changes enhanced data quality, tracing configurability, and developer productivity, enabling faster debugging, better telemetry, and streamlined bug-report workflows for performance-critical tracing journeys.
8 Commits • 4 Features
Feb 1, 2025February 2025 monthly summary for google/perfetto. Focused on delivering core tracing reliability and data enrichment, improved bug-reporting controls with per-app Atrace targeting, UI usability enhancements, and test performance improvements. These changes enhanced data quality, tracing configurability, and developer productivity, enabling faster debugging, better telemetry, and streamlined bug-report workflows for performance-critical tracing journeys.
February 2025
January 2025
24 Commits • 14 Features
Jan 1, 2025January 2025 delivered a broad set of UI, tracing, and RecordingV2 improvements for google/perfetto, prioritizing performance, reliability, and deployment stability. Key user-facing features include OOM detection improvements, CodeMirror CSS containment, improved handling of long QueryServiceState responses, and a new headless UI mode, complemented by dev-server lifecycle improvements. Tracing reliability was advanced with FD-passing cleanup and backward-compat signatures, added cgroups-v2 awareness for IsAndroidProcessFrozen, and a major RecordingV2 rollout with serialization fixes, stable+canary rollouts, and Web Device Proxy support. Legacy recording v1 was removed as part of cleanup, and multiple stability/backport fixes were applied to ensure a smoother experience across canary and stable channels. Notable bug fixes addressed >64MB trace recording, audio group handling in RecordingV2, and tooling/Docs quality.
January 2025
24 Commits • 14 Features
Jan 1, 2025January 2025 delivered a broad set of UI, tracing, and RecordingV2 improvements for google/perfetto, prioritizing performance, reliability, and deployment stability. Key user-facing features include OOM detection improvements, CodeMirror CSS containment, improved handling of long QueryServiceState responses, and a new headless UI mode, complemented by dev-server lifecycle improvements. Tracing reliability was advanced with FD-passing cleanup and backward-compat signatures, added cgroups-v2 awareness for IsAndroidProcessFrozen, and a major RecordingV2 rollout with serialization fixes, stable+canary rollouts, and Web Device Proxy support. Legacy recording v1 was removed as part of cleanup, and multiple stability/backport fixes were applied to ensure a smoother experience across canary and stable channels. Notable bug fixes addressed >64MB trace recording, audio group handling in RecordingV2, and tooling/Docs quality.
December 2024
13 Commits • 2 Features
Dec 1, 2024December 2024 performance summary for google/perfetto. Key focus areas were delivering Recording V2, stabilizing UI operations, and strengthening core tracing robustness, with a strong emphasis on UX improvements and maintainability. This period established a reliable foundation for broader adoption while reducing runtime errors and fragility across the UI and tracing pipeline.
13 Commits • 2 Features
Dec 1, 2024December 2024 performance summary for google/perfetto. Key focus areas were delivering Recording V2, stabilizing UI operations, and strengthening core tracing robustness, with a strong emphasis on UX improvements and maintainability. This period established a reliable foundation for broader adoption while reducing runtime errors and fragility across the UI and tracing pipeline.
December 2024
November 2024
30 Commits • 14 Features
Nov 1, 2024November 2024 performance summary for google/perfetto: - Delivered a major UI refactor to decouple global state and expose a Trace API for App plugins, enabling plugin-based tracing workflows without UI globals. - Implemented the UI API surface and plugin architecture, introducing a Page API, improved sidebar handling, and migrating most UI pages into self-contained plugins with recording control. - Achieved meaningful performance and reliability gains: ftrace tracking is now 10x faster and unnecessary full redraws were removed, contributing to a snappier UI and lower CPU usage. - Strengthened testing and CI: UI tests became more reliable and CI changes detection for UI updates was improved to save resources. - Architectural improvements and tooling enhancements: moved all recording code into a dedicated plugin, relocated GcsUploader to the base module, and exposed featureFlags in the App interface to support feature-driven UI behavior.
November 2024
30 Commits • 14 Features
Nov 1, 2024November 2024 performance summary for google/perfetto: - Delivered a major UI refactor to decouple global state and expose a Trace API for App plugins, enabling plugin-based tracing workflows without UI globals. - Implemented the UI API surface and plugin architecture, introducing a Page API, improved sidebar handling, and migrating most UI pages into self-contained plugins with recording control. - Achieved meaningful performance and reliability gains: ftrace tracking is now 10x faster and unnecessary full redraws were removed, contributing to a snappier UI and lower CPU usage. - Strengthened testing and CI: UI tests became more reliable and CI changes detection for UI updates was improved to save resources. - Architectural improvements and tooling enhancements: moved all recording code into a dedicated plugin, relocated GcsUploader to the base module, and exposed featureFlags in the App interface to support feature-driven UI behavior.
October 2024
9 Commits • 4 Features
Oct 1, 2024In October 2024, the Perfetto UI work centered on delivering user-facing enhancements, stabilizing core UI initialization, and strengthening code organization to reduce maintenance costs and accelerate future feature work. Key outcomes include a modal-based Permalink UX, reliable render initialization, improved navigation robustness, and modular architecture that decouples workspace and UI concerns. The month also introduced promise-based handling for long-running operations, improving user feedback with spinners and simplifying sidebar logic, alongside codebase improvements moving shared utilities to a base module and adding an allowlist-based UI dependency checker. These changes collectively raise user experience, reliability, and developer velocity, while reducing defect surface and enabling faster feature delivery.
9 Commits • 4 Features
Oct 1, 2024In October 2024, the Perfetto UI work centered on delivering user-facing enhancements, stabilizing core UI initialization, and strengthening code organization to reduce maintenance costs and accelerate future feature work. Key outcomes include a modal-based Permalink UX, reliable render initialization, improved navigation robustness, and modular architecture that decouples workspace and UI concerns. The month also introduced promise-based handling for long-running operations, improving user feedback with spinners and simplifying sidebar logic, alongside codebase improvements moving shared utilities to a base module and adding an allowlist-based UI dependency checker. These changes collectively raise user experience, reliability, and developer velocity, while reducing defect surface and enabling faster feature delivery.
October 2024
Activity
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Quality Metrics
Correctness89.0%
Maintainability89.0%
Architecture86.4%
Performance82.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
BPBashCC++CSSDockerfileGNGitHTMLJavaScript
Technical Skills
ADBADB ProtocolAPI DesignAPI IntegrationAndroid DevelopmentApplication ArchitectureAsynchronous ProgrammingAutomationBackend DevelopmentBash ScriptingBit manipulationBrowser AutomationBug FixBug FixingBuild Automation
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