I tried to run the following query:
| where CounterName == "% Processor Time" and ObjectName == "Processor" and InstanceName == "_Total"
| summarize AggregatedValue = avg(CounterValue) by bin(TimeGenerated, 1hr), Computer
| render timechart
But I got:
'where' operator: Failed to resolve table or column expression named 'Perf' If issue persists, please open a support ticket. Request id: 3b67cd23-4f8d-4249-88d4-b8cac1b64346