Noisy Neighbor Detection with eBPF

eBPF hooks track process state changes and CPU switches, enabling precise run queue latency measurement by storing timestamps in a hash map and calculating delays, while integrating cgroup IDs through RCU-protected kfuncs for detailed metrics which are then sent via ring buffer to a Go userspace app for analysis, revealing noisy neighbor issues by correlating latency spikes and preemptions in Atlas metrics.