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Functors to Monads: A Story of Shapes

For many years now I’ve been using a mental model and intuition that has guided me well for understanding and teaching and using functors, applicatives, monads, and other related Haskell abstractions, as well as for approaching learning new ones. Sometimes when teaching Haskell I talk about this concept and assume everyone already has heard it, but I realize that it’s...
Locking Mechanisms in High-Load Systems

In the world of concurrent systems, especially when we're dealing with high-load distributed environments, finding a balance between data consistency and system performance is a constant headache. The main catch here is synchronization mechanisms, especially locks. These guys ensure that processes don't step on each other's toes when sharing resources. In this blog post, let's break down what locks are,...
Functional programming in Go

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OpenAI's new "Orion" model reportedly shows small gains over GPT-4

Language model development seems to have hit a ceiling. OpenAI's upcoming Orion model barely outperforms GPT-4, its predecessor, according to a new report. This slowdown affects the entire AI industry. The Information reports that OpenAI's next major language model, codenamed "Orion," delivers much smaller performance gains than expected. The quality improvement between GPT-4 and Orion is notably less significant than what...
Storage Disaggregated Databases and Shared Transaction Log Architecture In Comparison

There are two great papers published recently regarding database storage architecture:Understanding the Performance Implications of the Design Principles in Storage-Disaggregated Databases — Xi Pang et. al., Sigmod, June 2024 (I will call it the “LogDB” in this post, a term from the paper.)Taming Consensus in the Wild (with the Shared Log Abstraction) — M. Balakrishnan, ACM SIGOPS Operating Systems Review, August 2024 (I will call...
GenMC: Model checking for concurrent C programs

GenMC: A model checker for weak memory models Summary GenMC is an open-source state-of-the-art model checker for verifying concurrent C/C++ programs under the RC11, IMM, and LKMM memory models. GenMC is based on a stateless model checking algorithm that is parametric in the choice of memory model. Subject to a few basic conditions about the memory model, our algorithm is sound, complete and optimal, in that it...

Tag: book

SOA Patterns is “deal of the day” on Manning’s site (Apr. 14th)

Published by Arnon Rotem-Gal-Oz on April 13, 2013

I just got a notice from Manning that my book SOA patterns will be featured as “deal of the day” on Apr 14th – that…

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The Saga pattern and that architecture vs. design thing

The Saga pattern and that architecture vs. design thing

Published by Arnon Rotem-Gal-Oz on January 24, 2013

It has been few months since SOA Patterns was published and so far the book sold somewhere between 2K-3K copies which I guess is not…

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SOA patterns (finally) published

SOA patterns (finally) published

Published by Arnon Rotem-Gal-Oz on August 28, 2012

My book on Service Oriented Architecture patterns is finally published. You can get the ebook on manning’s site. The printed version will be available Sept…

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SOA Patterns status update

SOA Patterns status update

Published by Arnon Rotem-Gal-Oz on March 16, 2012

I want to say I am delighted but I guess relieved is the right word here – I’ve finally submitted all the book chapters to manning and…

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SOA anti-pattern: Transactional Integration

Published by Arnon Rotem-Gal-Oz on September 29, 2010

Transactional Integration It all starts with a business requirement – as it always should. We have an ordering system (say the same one from the…

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