Performance

Illustration of memory pages being duplicated on write.

Deep Dive into Copy-on-Write Semantics in Modern Linux Kernels: Architecture, Mechanisms, and Optimization Patterns

A technical walkthrough of Linux COW, covering kernel architecture, fault paths, and proven tuning patterns for real‑world services.

Diagram of PostgreSQL transaction snapshots and tuple versions.

Mastering Multi-Version Concurrency Control in Postgres: Architecture, Transaction Isolation, and Performance Tuning

Explore how PostgreSQL implements MVCC, the nuances of its isolation levels, and proven performance‑tuning patterns for real‑world systems.

Diagram of epoll and io_uring data paths on a Linux kernel.

Deep Dive into Linux I/O Evolution: From epoll to io_uring Architecture and Performance Patterns

A detailed look at the evolution of Linux asynchronous I/O, comparing epoll and io_uring, and showing how to apply their patterns in high‑throughput services.

Diagram of copy‑on‑write page sharing in Linux.

Deep Dive into Copy-on-Write Semantics: Memory Management and Performance in Modern Linux Kernels

A technical walkthrough of COW in modern Linux kernels, covering the VM architecture, fault handling, performance trade‑offs, and production‑ready patterns.

Diagram of PostgreSQL MVCC version chains

Deep Dive into Postgres MVCC: Architecture, Transaction Isolation, and Performance at Scale

A deep dive into PostgreSQL’s Multi-Version Concurrency Control, covering its internal design, isolation guarantees, and proven patterns to keep latency low at massive scale.