Performance

Inside Performance Profiling: Identifying Critical Bottlenecks Hidden by Standard CPU Flame Graphs

Standard flame graphs give a surface view, but subtle latency sources stay invisible. This post shows how to dig deeper with async tracing, hardware counters, and custom aggregations.

Diagram of a Linux cgroup hierarchy with resource controllers.

Mastering cgroups v2 Resource Isolation: Implementation Strategies, Unified Hierarchy, and Production-Ready Performance Controls

Explore how to adopt cgroups v2 in production, understand its unified hierarchy, and apply concrete performance‑tuning patterns.

Illustration of multiple data streams flowing over a single QUIC connection.

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

A technical walkthrough of QUIC’s stream model, its architecture, production patterns, and real‑world performance gains.

Illustration of PostgreSQL data pages with multiple tuple versions.

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

A technical walkthrough of PostgreSQL’s Multi-Version Concurrency Control, how it enforces isolation, and practical tips to keep performance predictable at scale.

Diagram of three overlapping circles labeled Utilization, Saturation, and Errors.

Implementing the USE Method: A Deep Dive into Utilization, Saturation, and Errors for Systems Performance

A practical guide that shows engineers how to instrument, interpret, and act on USE metrics across modern cloud stacks.