Performance

Diagram of utilization, saturation, and error metrics overlaying a production stack.

Mastering the USE Method: Performance Analysis for Utilization, Saturation, and Errors in Production Systems

This post walks through the USE method, showing how to instrument and interpret utilization, saturation, and error metrics in real‑world Kafka, PostgreSQL, and Kubernetes deployments.

Illustration of JVM and .NET heap generations.

Deep Dive into Generational Garbage Collection: Memory Management in Modern JVM and .NET Runtimes

A technical walkthrough of generational GC in the JVM and .NET, covering heap layout, pause times, and actionable tuning strategies.

Diagram of eBPF program flow from kernel to userspace.

Mastering eBPF for Tracing and Production Observability: Architecture, Performance, and Real-World Implementation

Explore how eBPF reshapes observability, learn its core architecture, and see production‑ready patterns backed by real metrics and code.

Diagram of jemalloc arenas and thread caches interacting across CPU cores.

Deep Dive into jemalloc Arenas and Thread Caches: Architecture, Scalability, and Memory Management Patterns

A production‑focused look at jemalloc’s arena and thread‑cache design, with patterns to boost scalability and reduce fragmentation.

Diagram of a Linux page table showing shared and private pages.

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

A practical guide to Linux’s copy‑on‑write mechanism, covering its internals, performance impact, and production‑ready patterns.