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Michał Muskała

PROFILE

Michał Muskała

Worked on the erlang/otp repository to deliver a targeted file I/O performance optimization focused on the write path. The approach involved skipping read buffer allocations for files opened in write mode and removing unnecessary seek operations when files were opened exclusively for writing. By reducing memory usage and minimizing system call overhead, the changes improved write throughput and lowered latency for I/O-intensive workloads. The optimization was implemented internally to maintain API compatibility and minimize risk, with all modifications isolated to the prim_file write path. Utilized Erlang, system calls, and performance tuning techniques to address scalability and efficiency in production environments.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

1Total
Bugs
0
Commits
1
Features
1
Lines of code
102
Activity Months1

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662 people

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Pooja AgarwalMember

Work History

May 2025

1 Commits • 1 Features

May 1, 2025

In May 2025, delivered a targeted file I/O performance optimization for erlang/otp, focusing on the write path. By skipping read buffer allocations for files opened in write mode and eliminating unnecessary seeks when a file is opened exclusively for writing, the change reduces memory overhead and system calls, improving write throughput and lowering latency for I/O-heavy workloads. This aligns with scalability, reliability, and cost-efficiency goals for production deployments.

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Quality Metrics

Correctness90.0%
Maintainability80.0%
Architecture80.0%
Performance100.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

Erlang

Technical Skills

Erlang NIFsFile I/O OptimizationPerformance TuningSystem Calls

Repositories Contributed To

1 repo

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

erlang/otp

May 2025 May 2025
1 Month active

Languages Used

Erlang

Technical Skills

Erlang NIFsFile I/O OptimizationPerformance TuningSystem Calls