Primiano Tucci
Senior Staff Software Engineer at Google
London, England, United Kingdom
Summary
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Rockstar🎓
Top SchoolPrimiano Tucci is a Senior Staff Software Engineer at Google with 15 years of systems and performance engineering experience, based in London. He leads and authors Perfetto, the widely used open-source tracing and profiling project for Android, Linux and Chrome, and has driven low-level back-end work to improve shared-memory handling, mmap-based trace processing, and ftrace support. His background spans deep systems work—crash-report minidump/microdump plumbing, kernel security tweaks for tracing services, and filesystem/COW contributions—reflecting strong competency in low-level C/C++ and cross-architecture platform code. A former PhD student in real-time embedded systems, he brings academic rigor to production engineering and has optimized tracing pipelines for large-scale, performance-sensitive environments. Notably, he moved core Perfetto components away from /dev/zero and added architectural support for multiple CPU families, showing a knack for both practical engineering and portability.
15 years of coding experience
3 years of employment as a software developer
University of BolognaBachelor of Science, Computer Engineering, Bachelor of Science, Computer Engineering at Alma Mater Studiorum - Università di Bologna
Stackoverflow
11reputation
551reached
1answer
0questions
Github Skills (18)
debugging10
c-language10
system-programming10
google-breakpad10
linux10
performance-optimization10
android10
crash-reports10
cprogramming-language10
kernel-mode9
kernel9
multithreading8
memory-management8
security8
file-management8
Programming languages (10)
Github contributions (5)
google/perfetto
Jan 2020 - Dec 2022
Production-grade client-side tracing, profiling, and analysis for complex software systems.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 releases, 209 reviews, 2481 commits in 2 years 11 months
Contributions summary:Primiano primarily contributed to the back-end side of the project by refactoring the code to migrate away from /dev/zero, adding mmap support for trace processing, and implementing various performance improvements. These changes involved modifications to the underlying codebase, including modifications to core functionalities like handling shared memory and reading/writing tracing data to support faster and more reliable trace processing. The user also added support for ftrace events.
profiling
aosp-mirror/platform_system_core
Oct 2020 - Feb 2021
Role in this project:Back-end Developer
Back-end DeveloperContributions:13 commits in 4 months
Contributions summary:Primiano's contributions center around modifying the `init.rc` file to introduce a new property, `security.lower_kptr_restrict`, for adjusting kernel security settings. This involved adding conditional write operations to `/proc/sys/kernel/kptr_restrict` based on the property's value, which enables a tracing service to temporarily lower security restrictions. The user also contributed to code related to filesystem operations and COW (Copy-on-Write) functionality in the `fs_mgr` directory, specifically the `snapuserd` component. This encompassed merge operations and various test cases.
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