Systems-Programming

Illustration of overlapping threads and memory epochs.

The Thread Safety Tradeoffs of Epoch Based Reclamation

A deep dive into epoch based reclamation, its thread‑safety model, performance trade‑offs, and how it stacks up against alternative reclamation schemes.

Diagram of a Linux cgroup hierarchy with v2 unified tree.

Why Cgroups V2 Redefined Modern Linux Resource Isolation

Cgroups v2 unifies the control hierarchy, introduces granular I/O and memory throttling, and simplifies container orchestration, making Linux resource isolation more predictable and efficient.

Illustration of a low-level lock mechanism in code.

Building Userland Mutexes with the Futex System Call

A deep dive into constructing efficient mutexes in user space with futex, complete with code examples and best practices.

Illustration of overlapping epochs in concurrent memory reclamation.

How Epoch-Based Reclamation Avoids the Stalled Pointer Problem

A deep dive into epoch‑based reclamation, showing why it solves the stalled pointer issue and how to apply it safely in high‑performance concurrent code.

Illustration of a circular buffer with atomic pointers.

The Mechanics of Thread Safety in Lockless Circular Buffers

A deep dive into lockless circular buffer design, showing how atomic primitives, memory fences, and careful indexing keep multiple producers and consumers safe without locks.