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.

May 31, 2026 · 9 min · 1884 words · martinuke0
Illustration of memory arenas and thread caches in jemalloc.

Deep Dive into jemalloc Arenas and Thread Caches: Architecture, Performance, and Production Tuning

A practical guide that walks engineers through jemalloc’s internal design, benchmarks, and real‑world tuning tips for high‑throughput workloads.

May 29, 2026 · 8 min · 1529 words · martinuke0
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.

May 28, 2026 · 8 min · 1523 words · martinuke0
Diagram of system metrics overlaying a server rack.

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

A practical guide for engineers to master the USE Method, transform raw metrics into clear bottleneck insights, and implement production‑ready monitoring architectures.

May 28, 2026 · 7 min · 1406 words · martinuke0
Diagram showing epoll and io_uring data paths inside the Linux kernel.

Deep Dive into io_uring and epoll: Internal Architecture, Performance Tradeoffs, and System Call Evolution

Explore the inner workings of epoll and io_uring, see how they differ in latency, throughput, and programming model, and learn which patterns work best in modern high‑scale services.

May 27, 2026 · 9 min · 1857 words · martinuke0
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