martinothamar

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Martin Othamar martinothamar

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125 followers · 1 following

@Forse
Oslo, Norway
in/martinothamar

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martinothamar/README.md

Hi there 👋, my name is Martin

I am a polyglot programmer and open source enthusiast, working as a consultant at Forse

I've built
- Mediator - a fast (close to 0 overhead) sourcegenerator-based mediator pattern implementation in .NET. Mostly MediatR-compatible, but faster
- Fast.PRNGs.NET - fast PRNG implementations (up to 2.5x faster than System.Random)
- simd-rand - SIMD implementations of common PRNGs in Rust 🦀 (for example Xoshiro256+ ~60 GiB/s u64 gen using AVX512 on my laptop, about 6x faster than non-vectorized)
- "building x in y" - experiments and learning about systems programming, programming languages, architectures and designs
  - Simulating football seasons using the Monte Carlo method in Rust - lots of SIMD and performance engineering
  - HTTP servers - experimenting with various techniques and architectures for performent HTTP servers: IO Uring, Linux, thread-per-core...
  - Calculation Engine - calculatione engine with a builder API for creating formulas while doing vectorized calculations over columns of data
Currently exploring Rust, Zig and Go

I strive to make simple, observable systems - employing mechanical sympathy to build efficient and reliable software.

Some of my favorite technical content 📖:

Parse, don’t validate - by Alexis King
Designing with types: Making illegal states unrepresentable - by Scott Wlaschin
Anemic Domain Model - by Martin Fowler
Design Smell: Primitive Obsession - by Mark Seemann/ploeh
Simple Made Easy - by Rich Hickey
CUPID - for joful coding - reflections on characteristics and properties vs principles - by Dan North
SOLID? Nope, just Coupling and Cohesion - by CodeOpinion/Derek Comartin
Modular Monoliths - by Simon Brown
Vertical Slice Architecture - by Jimmy Bogard
TigerStyle! (Or How To Design Safer Systems in Less Time) - by Joran Dirk Greef
- Doc: https://github.com/tigerbeetle/tigerbeetle/blob/main/docs/TIGER_STYLE.md
What is Going On With Software? - reflections on abstraction and performance - by Matthew Crews
Data-Oriented Design and C++ - legendary talk by Mike Acton
Practical Data Oriented Design - by Andrew Kelley
Designing for Performance - by Martin Thompson
How NOT to Measure Latency - by Gil Tene
Performance Excuses Debunked - by Casey Muratori
"Clean" Code, Horrible Performance - by Casey Muratori
Adventures in Performance: Efficiency Analysis of Large-scale Compute - by Thomas Dullien/Halvar Flake

Pinned Loading

Mediator Mediator Public

A high performance implementation of Mediator pattern in .NET using source generators.

C# 2.2k 71
building-x-in-y building-x-in-y Public

Repository where I experiment and build various systems for learning purposes (mostly low-level)

Rust 3 1
Fast.PRNGs.NET Fast.PRNGs.NET Public

Fast PRNG implementations in .NET. Your PRNG is unlikely to be a bottleneck in anything you do, but there are exceptions like for instance Monte Carlo simulations, where generating random samples c…

C# 5
simd-rand simd-rand Public

SIMD implementations of common PRNGs in Rust 🦀

Rust 4 3
WrapperValueObject WrapperValueObject Public

A .NET source generator for creating simple value objects wrapping primitive types.

C# 53 3
FastLazy FastLazy Public

Fast, lock-free implementation of lazy initialization on .NET

C# 2