LinuxTutorialBeginner
RHEL 9 Performance Tuning: tuned, sysctl, and CPU/Memory Optimization
How to tune RHEL 9 performance using tuned profiles, sysctl parameters, CPU governors, NUMA topology, and memory settings — for database servers, web workloads, and latency-sensitive applications.
KubernetesQuick RefBeginner
Fix Kubernetes OOMKilled: Pod Keeps Getting Killed for Memory
Diagnose and fix OOMKilled errors in Kubernetes pods — understand memory limits, identify leaks, and configure resource requests correctly.
PrometheusQuick RefBeginner
Fix Prometheus High Memory Usage and OOM Kills
Diagnose and fix Prometheus out-of-memory crashes caused by high cardinality, excessive retention, or misconfigured storage with practical steps and commands.