facebook/fbthrift
Jun 2025 – Dec 2025
2 Months active
Languages Used
RustC++
Technical Skills
Rustperformance optimizationsystem programmingC++ developmentsystem design
Hai Chi
PROFILE
Hai Chi
Worked on the facebook/fbthrift repository to deliver two core features focused on performance and efficiency in C++ and Rust. Developed a loop-based thrift binary protocol skip algorithm, replacing recursion with looping to accelerate processing of fixed-size types in lists, sets, and maps, resulting in up to 28x faster skip operations for targeted data structures. Also implemented connection identity caching within the connection context, reducing per-request certificate parsing and improving latency without increasing dependencies by leveraging folly::erased_unique_ptr. Demonstrated strengths in system programming, performance optimization, and system design, with careful benchmarking and integration to ensure maintainability and measurable impact.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
2Total
Bugs
0
Commits
2
Features
2
Lines of code
355
Activity Months2
Your Network
3324 peopleSame Organization
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Work History
December 2025
1 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for facebook/fbthrift: Delivered Connection Identity Caching in the Connection Context to cache authenticated identities, reducing per-request certificate parsing and improving latency without adding dependencies. Implemented with folly::erased_unique_ptr to avoid introducing new dependencies, and integrated with existing identity extraction paths. Change aligns with historical discussions and reviews.
1 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for facebook/fbthrift: Delivered Connection Identity Caching in the Connection Context to cache authenticated identities, reducing per-request certificate parsing and improving latency without adding dependencies. Implemented with folly::erased_unique_ptr to avoid introducing new dependencies, and integrated with existing identity extraction paths. Change aligns with historical discussions and reviews.
December 2025
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025—fbthrift performance optimization: Implemented a loop-based thrift binary protocol skip algorithm to accelerate processing of fixed-size types in lists, sets, and maps. This optimization yielded up to 28x performance gains on targeted data structures, with a minor regression for simpler cases due to the switch from recursion to looping. The change introduces a maintainable non-recursive skip path and includes benchmarking to validate gains. Overall impact includes improved throughput for skip operations and stronger code quality via refactoring; demonstrated skills in performance optimization, benchmarking, and safe refactoring.
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025—fbthrift performance optimization: Implemented a loop-based thrift binary protocol skip algorithm to accelerate processing of fixed-size types in lists, sets, and maps. This optimization yielded up to 28x performance gains on targeted data structures, with a minor regression for simpler cases due to the switch from recursion to looping. The change introduces a maintainable non-recursive skip path and includes benchmarking to validate gains. Overall impact includes improved throughput for skip operations and stronger code quality via refactoring; demonstrated skills in performance optimization, benchmarking, and safe refactoring.
Activity
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Quality Metrics
Correctness90.0%
Maintainability90.0%
Architecture90.0%
Performance100.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++Rust
Technical Skills
C++ developmentRustperformance optimizationsystem designsystem programming
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