How I Rescued a Critical Service from 100% CPU: A Step‑by‑Step Ops Playbook

After a midnight CPU alarm, I walked through rapid diagnosis, JVM profiling, algorithm refactoring, database indexing, Docker isolation, and enhanced monitoring to bring a high‑load Java service back to stability, illustrating a comprehensive incident‑response workflow for modern operations teams.

CPU troubleshootingDocker deploymentJVM profiling

0 likes · 7 min read

How I Rescued a Critical Service from 100% CPU: A Step‑by‑Step Ops Playbook

Alibaba Cloud Native

Dec 16, 2022 · Operations

Mastering Performance Testing: Tools, Techniques, and Real-World Case Studies

This comprehensive guide explains what performance testing (stress testing) is, why it matters, various test types, popular tools like ApacheBench, JMeter, LoadRunner and PTS, and provides detailed step-by-step methodologies and real-world case analyses for diagnosing memory, CPU, and latency issues in cloud‑native Java applications.

CPU optimizationJVM profilingload testing tools

0 likes · 24 min read

Mastering Performance Testing: Tools, Techniques, and Real-World Case Studies

Programmer DD

Sep 10, 2018 · Operations

Master System Performance: Essential Tools & Techniques for Debugging Bottlenecks

This article consolidates practical knowledge on system performance optimization, covering key metrics, load‑testing utilities, Linux monitoring commands, and JVM profiling tricks to help engineers pinpoint and resolve throughput, latency, CPU, disk, and network bottlenecks.

CPU analysisDisk I/OJVM profiling

0 likes · 15 min read

Master System Performance: Essential Tools & Techniques for Debugging Bottlenecks