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Andrew McCloskey

PROFILE

Andrew Mccloskey

During January 2026, this developer focused on performance optimization within the netty/netty repository, specifically targeting IO_uring-based socket paths. They delivered a feature that replaced the traditional write operation with send for single-message socket communication, aiming to reduce the instruction count in the send path and enhance throughput. The implementation, written in Java and leveraging network programming expertise, was released as a patched jar and validated through Vert.x-based benchmarks in FrameworkBenchmarks. Flamegraph analysis confirmed tangible CPU efficiency improvements under load, demonstrating a methodical approach to performance tuning and laying the groundwork for further IO_uring optimizations in high-throughput environments.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

1Total
Bugs
0
Commits
1
Features
1
Lines of code
2
Activity Months1

Work History

January 2026

1 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary for netty/netty: Focused on performance optimization of IO_uring-based socket paths. Delivered a feature to use send over write for single-message sockets, reducing the instruction count in the send path and improving throughput. No major bugs reported this month. The change was released as a patched jar (4.2-patched) and validated via Vert.x-based benchmarks in FrameworkBenchmarks, with flamegraphs attached for verification. This work demonstrates tangible CPU-efficiency gains in high-throughput socket workloads and sets groundwork for additional IO_uring optimizations.

Activity

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Quality Metrics

Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance100.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

Java

Technical Skills

Javanetwork programmingperformance optimization

Repositories Contributed To

1 repo

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

netty/netty

Jan 2026 Jan 2026
1 Month active

Languages Used

Java

Technical Skills

Javanetwork programmingperformance optimization