EXCEEDS logo
Exceeds
Robin Morisset

PROFILE

Robin Morisset

Worked on enhancing ETS named table lookups in the erlang/otp repository, focusing on reducing contention and improving throughput for read-mostly access patterns. The solution replaced striped read-write locks with lightweight atomic synchronization for non-writing lookups, leveraging concurrent programming and system programming expertise in C. This approach enabled lock-free lookups and integrated safe memory reclamation using thread_progress, ensuring robust concurrency. The optimization was validated through production observations, which showed reduced CPU time in lookup code paths, and was further supported by expanded test coverage targeting race conditions. The work demonstrated a strong focus on performance optimization and reliable, concurrent system design.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

1Total
Bugs
0
Commits
1
Features
1
Lines of code
490
Activity Months1

Your Network

741 people

Work History

September 2022

1 Commits • 1 Features

Sep 1, 2022

Month 2022-09: Performance-focused delivery for ETS named table lookups in erlang/otp, achieving significantly reduced contention and improved throughput for read-mostly paths. The work combined a lock-free lookup path with safe memory reclamation, validated by production observations and extended test coverage.

Activity

Loading activity data...

Quality Metrics

Correctness100.0%
Maintainability80.0%
Architecture100.0%
Performance100.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

C

Technical Skills

concurrent programmingperformance optimizationsystem programming

Repositories Contributed To

1 repo

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

erlang/otp

Sep 2022 Sep 2022
1 Month active

Languages Used

C

Technical Skills

concurrent programmingperformance optimizationsystem programming