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
Flame graph visualizing CPU usage over time.

Deep Dive into Flame Graphs: Profiling Blind Spots, Sampling Bias, and Hidden Execution Latency

A practical guide to using flame graphs in production, covering architecture, bias mitigation, and actionable insights.

May 27, 2026 · 7 min · 1331 words · martinuke0
RocksDB compaction diagram on a server rack.

Optimizing LSM-tree Compaction in RocksDB: A Deep Dive into Write Amplification and Performance Tuning

Learn how to cut write amplification in RocksDB with concrete compaction settings, architecture insights, and production‑ready tuning tips.

May 26, 2026 · 6 min · 1156 words · martinuke0
Diagram of Raft nodes synchronizing a log.

Understanding the Raft Consensus Algorithm and Distributed State Machine Replication

A comprehensive guide to Raft, covering its core mechanics and how it enables reliable state machine replication across unreliable nodes.

May 12, 2026 · 8 min · 1577 words · martinuke0

The Rise of Agentic AI: Engineering Lessons from Sam Altman and OpenAI

Introduction In the last few years, the term agentic AI has moved from academic footnote to a central pillar of the industry’s roadmap. While “agentic” simply describes systems that can act autonomously toward a goal—selecting tools, planning, and iterating on their own—its practical realization has sparked a wave of new products, research directions, and engineering challenges. Few figures have shaped this shift as visibly as Sam Altman, CEO of OpenAI, whose public pronouncements, internal memos, and product launches have provided a de‑facto playbook for building and deploying agentic systems at scale. ...

March 29, 2026 · 11 min · 2139 words · martinuke0
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