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New article: The Go System Monitor How sysmon, a thread with no P, keeps the runtime fair. It preempts goroutines, retakes Ps from syscalls, forces GC every 2 minutes, and ensure network poller keeps ticking. The Go's watchdog internals-for-interns.com/posts/go-sys... #golang #go #runtime

Saturday deep dive into the Go runtime's watchdog thread: sysmon It runs without a P, outside the scheduler, monitoring everything. When a goroutine hogs the CPU for over 10ms, sysmon steps in. When a syscall blocks a P, sysmon retakes it. Drops Monday #golang #go #runtime

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New article: Inside the XFS Filesystem. It splits the disk into independent Allocation Groups so multiple cores can work in parallel without blocking each other. XFS uses B+ trees for almost everything. Check it out here: internals-for-interns.com/posts/xfs-fi... #XFS #Linux #Filesystems

Next 3 months at Internals for Interns: - Filesystem deep dives: Btrfs & ZFS - Finishing the Go runtime series - NEW: Linux Kernel internals series 🐧 Subscribe if you're into this stuff internals-for-interns.com/newsletter/

github.com/pycub has added a new exercise to the Having Fun with the go source code workshop. The exercise is a D&D style work stealing approach, where the goroutine has to roll a dice to know if stealing was successful: jespino.github.io/having-fun-w... Very cool exercise.

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New article: Inside Go's Garbage Collector 🧹 How Go reclaims memory without stopping your program. Tri-color marking, write barriers, span-based batching, SIMD-accelerated scanning, and drafting goroutines into helping GC when they allocate too fast. 👉 internals-for-interns.com/posts/go-gar...

Today I'm exploring Go's garbage collector How does Go clean up memory without stopping your program? Turns out it uses a tri-color marking algorithm, SIMD-optimized scanning, and a clever span-based batching system. The article drops this Monday

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I'll be at Codemotion Madrid (Apr 20-21) with "Understanding 5 Language Memory Models": 🔧 Manual → C 🦀 Borrowing → Rust 🐍 Reference counting → Python 🐹 Garbage collection → Go ☕ Generational GC → Java Also MC'ing the event. Come say hi! 👋 #CodemotionMadrid

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New article: Inside Go's Runtime Scheduler 🚀 How Go runs millions of goroutines on a few OS threads. The GMP model, work stealing, spinning threads, and context switches that take only 50-100 nanoseconds (10-40x faster than OS threads). 👉 internals-for-interns.com/posts/go-run... #golang

Sunday deep dive into Go's runtime scheduler How does Go run millions of goroutines on just a handful of OS threads? The elegant GMP model (Goroutine, Machine, Processor). Fun detail: goroutines park themselves. There's no central scheduler thread pulling the strings. Drops tomorrow

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Small achievement: merging a full blown feature into an @opentelemetry.io project. In this case, we are working on autoinstrumenting Go code. So, we needed a way to add new packages on-the-fly by manipulating Golang toolchain "importcfg" files. The PR: github.com/open-telemet...

🤔 New blog post! Learn how to implement intent detection in conversational #AI using #GenKit Go and @docker.com Model Runner with locally hosted LLMs. From simple #D&D NPC routing to complex multi-intent detection - all running locally with the jan-nano model! 🌍 k33g.hashnode.dev/intents-in-c...

A nice article: Understanding the Go compiler: The Scanner #golang internals-for-interns.com/posts/the-g...