Performance

A dashboard visualizing utilization, saturation, and errors across a distributed system.

Mastering the USE Method: Investigating System Bottlenecks through Utilization, Saturation, and Errors

A step‑by‑step guide that shows engineers how to gather and interpret utilization, saturation, and error metrics, then translate them into actionable architecture changes.

Illustration of multiple data streams flowing through a QUIC connection without interference.

Deep Dive into QUIC Stream Multiplexing: Eliminating Head-of-Line Blocking for High-Performance Networking

A practical guide to QUIC’s stream multiplexing, showing how it solves head‑of‑line blocking and how to implement it in real systems.

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.