Common patterns
Rate (events per second)
rate(http_requests_total[5m])p95 latency
histogram_quantile(0.95, sum by (le) (rate(http_request_duration_seconds_bucket[5m])))Top-3 hosts by CPU
topk(3, system_cpu_usage_percent)Error rate
sum(rate(http_requests_total{status=~"5.."}[5m])) / sum(rate(http_requests_total[5m]))Availability over a period
avg_over_time(up[1h])