from:
https://www.cloudsma.com/2018/07/adding-azure-log-analytics-performance-counters/
https://techcommunity.microsoft.com/t5/azure-monitor/monitoring-processes/m-p/250947#
First, in your Azure Portal Log Analytics workspace, go to advanced settings, Data, Windows Performance Counters. Note you can do the same for Linux, but this example covers Windows.
Click add to add the default ......