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amir5d ago • 9 min read
The Silent Killers of Go Concurrency: Mutexes, Semaphores, and Goroutine Leaks
A senior backend engineer's field notes on lock contention, goroutine leaks, semaphores, pprof, and ...
#go#backend#concurrency#performance
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Do Pham Dinh5d ago • 7 min read
The race condition a stress test found in my double-entry ledger — and how I fixed it
A concurrency bug that lost 85% of balance updates under load, and the optimistic-locking + bounded-...
#java#springboot#postgres#concurrency
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Allan Bontempo2d ago • 6 min read
Race-Condition: How a Single SQL Line Eliminated 100 Lines of Retry and Lock Code
hat "rare" bug that looks intermittent but is actually deterministic. It is just waiting for your...
#java#oracle#concurrency#backend
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Machine coding Master2d ago • 2 min read
Why Your eBPF Profiler Lies to You About Java Virtual Threads
Why Your eBPF Profiler Lies to You About Java Virtual Threads In 2026, virtual threads are...
#java#concurrency#systemdesign#computerscience
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Mukunda Rao Katta3d ago • 4 min read
I run 30 agents in parallel. They share one budget. Here is the pool primitive that makes that safe.
A small Rust crate for thread-safe shared token and USD budgets across concurrent agents. Reserve pl...
#hermeschallenge#ai#rust#concurrency
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Machine coding Master6d ago • 2 min read
The Death of Static Rate Limiters: Why Your Java Virtual Threads Need BBR-Style Adaptive Concurrency
The Death of Static Rate Limiters: Why Your Java Virtual Threads Need BBR-Style Adaptive...
#java#concurrency#systemdesign#algorithms
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Machine coding Master4d ago • 2 min read
Stop Polling Your Outbox: Lightweight Event Streaming with Postgres LISTEN/NOTIFY and Java Virtual Threads
Stop Polling Your Outbox: Lightweight Event Streaming with Postgres LISTEN/NOTIFY and Java...
#java#systemdesign#concurrency#design
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Machine coding Master3d ago • 2 min read
Java 26 Structured Concurrency: Stop Subclassing StructuredTaskScope and Use JEP 480 Joiners
Java 26 Structured Concurrency: Stop Subclassing StructuredTaskScope and Use JEP 480...
#java#concurrency#design#programming
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Gabriel Anhaia5d ago • 8 min read
PHP Fibers in Production: 4 Real Cases Where They Beat curl_multi and Queues
Fibers landed in PHP 8.1 and most Laravel codebases still don't use them. Here are four cases where ...
#php#async#performance#concurrency
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Somenath Mukhopadhyay6d ago • 2 min read
Class level locking in C++ - serializing multiple threads...
When I studied Android AsyncTask, especially when serialexecutor was the norm, I found how Google...
#concurrency#cpp
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![[SC] Pasos para migrar a Swift 6 y verificación estricta de concurrencia](https://media2.dev.to/dynamic/image/width=1200,height=627,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fdd99skv92aj81zksc3ey.png)
GoyesDevMay 22, 2026 • 4 min read
[SC] Pasos para migrar a Swift 6 y verificación estricta de concurrencia
Comprensión durante la lectura ¿Por qué se recomienda comenzar la migración con...
#swift#ios#concurrency#swiftconcurrency
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![[SC] El BuildSetting "Approachable Concurrency"](https://media2.dev.to/dynamic/image/width=1200,height=627,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fcz0mxy94m5t73bbi0u4c.png)
GoyesDev6d ago • 6 min read
[SC] El BuildSetting "Approachable Concurrency"
"Approachable concurrency" es la unión de las siguientes propuestas: 5.9 SE-401: Disable Outward...
#swift#ios#concurrency#swiftconcurrency
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Gabriel Anhaia5d ago • 8 min read
Symfony Lock Component: Distributed Locks in 50 Lines (No Redis Required)
Distributed locks without Redis. Symfony's Lock component ships five backends and one API. Postgres ...
#symfony#php#concurrency#architecture
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Gabriel Anhaia5d ago • 8 min read
Read-Modify-Write: The Optimistic Concurrency Pattern Most ORMs Get Wrong
Two users update the same row at the same time. One write disappears. Your dashboard says everything...
#database#orm#concurrency#backend
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![[SC] Migrando desde programación reactiva (RxSwift y Combine)](https://media2.dev.to/dynamic/image/width=1200,height=627,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Ftcg7aenaeu8fmr2l5vhu.png)
GoyesDev3d ago • 3 min read
[SC] Migrando desde programación reactiva (RxSwift y Combine)
Comprensión durante la lectura ¿Por qué la comunidad Swift está migrando de...
#swift#ios#concurrency#swiftconcurency
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![[SC] ¿Cuándo y cómo usar @preconcurrency ?](https://media2.dev.to/dynamic/image/width=1200,height=627,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F1i8t2b678jprj5har913.png)
GoyesDev3d ago • 2 min read
[SC] ¿Cuándo y cómo usar @preconcurrency ?
Comprensión durante la lectura ¿Qué es el atributo @preconcurrency y para qué...
#swift#ios#concurrency#swiftconcurrency
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![[SC] Migrando a Notificaciones seguras (en términos de concurrencia)](https://media2.dev.to/dynamic/image/width=1200,height=627,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fujmnjnppppqmq9t1kybl.png)
GoyesDev3d ago • 2 min read
[SC] Migrando a Notificaciones seguras (en términos de concurrencia)
Comprensión durante la lectura ¿Por qué las notificaciones estándar de...
#swift#ios#concurrency#swiftconcurrency
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![[SC] Técnicas para reescribir closures en código async/await](https://media2.dev.to/dynamic/image/width=1200,height=627,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F2pvwgwqxeopp5j7l88kd.png)
GoyesDev3d ago • 3 min read
[SC] Técnicas para reescribir closures en código async/await
Comprensión durante la lectura ¿Qué problema resuelve migrar de closures a...
#swift#ios#concurrency#swiftconcurrency
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![[SC] Herramienta de migración para "Upcoming features"](https://media2.dev.to/dynamic/image/width=1200,height=627,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fxc52iphq97c8ssgrh50z.png)
GoyesDev4d ago • 2 min read
[SC] Herramienta de migración para "Upcoming features"
Comprensión durante la lectura ¿Por qué es importante migrar un proyecto a las...
#swift#ios#concurrency#swiftconcurrency
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