Runtime

Illustration of a tri‑color graph overlaying a heap memory diagram.

Implementing Concurrent Garbage Collection: Tri-Color Marking Architecture, Synchronization, and Real-World Patterns

A deep dive into tri‑color marking, synchronization techniques, and real‑world implementations that keep modern runtimes responsive while reclaiming memory safely.

Illustration of goroutine workers exchanging tasks in a work‑stealing pool.

Deep Dive into the Go Work-Stealing Scheduler: Internal Architecture, Mechanics, and Runtime Efficiency

A technical walkthrough of Go’s work‑stealing scheduler, covering its data structures, steal algorithm, and the knobs you can tune to squeeze out latency and throughput in production.

Illustration of two memory semispaces with objects being copied.

Why Cheney Semispace Copying Prevents Heap Fragmentation

Explore why Cheney’s semispace copying algorithm inherently prevents heap fragmentation, how it works under the hood, and what trade‑offs developers should consider.

Illustration of two memory semispaces with arrows indicating copying.

The Mechanical Reality of Cheney Semispace Copying

Discover how Cheney’s semispace copying algorithm works under the hood, why it matters for modern runtimes, and what pitfalls to avoid when implementing it.

Illustration of Go goroutines flowing across multiple CPU cores.

How the Go Runtime Balances Work Across Processor Threads

A deep dive into Go’s scheduler, showing how goroutines are mapped to OS threads, how work stealing and preemption keep CPUs busy, and practical tips for tuning performance.