Users are reporting service timeouts and performance issues.

To monitor usage patterns, including the number of requests and instances in use, ArcGIS Server provides statistics reports in Server Manager. These reports show peak and average service usage, helping administrators decide how to scale service instance counts.

From ArcGIS Server documentation:

“Use the ArcGIS Server Manager statistics reporting tool to monitor service usage trends over time. This data helps inform adjustments to instance counts.”

Option A gives only raw system metrics, not service-specific insights.

Option B (Debug logs) causes overhead and isn’t appropriate for monitoring trends.