Cartridges extend the functionality of Foglight and are installed on the Foglight Management Server. A cartridge contains one or more components, such as agents for deployment, communication capabilities, and modifications to the way that data is transformed or handled, as well as rules, reports, and views. When a cartridge is installed and enabled, its components become part of the Management Server. Adding cartridges allows users to monitor additional parts of their environment. For further details about managing cartridges, See the Foglight Administration and Configuration Guide.
When SQL statements and other types of calls are made to Azure SQL Database, an amount of CPU time is necessary to process the call. Average calls require a small amount of CPU time. However, an SQL statement involving a large amount of data or a runaway query can potentially consume a large amount of CPU time, reducing CPU time available for other processing.
CPU utilization is the most important operating system statistic in the tuning process. Excessive CPU usage usually means that there is little idle CPU on the system. This could be caused by an inadequately-sized system, by untuned SQL statements, or by inefficient application programs.
Wait Time (seconds) until the CPU resource is available. Time spent by the session waiting in the system's run queue for CPU cycles. The amount of time is dependent upon the number of concurrent processes and threads requesting CPU time. The metric value should be inspected in conjunction with the value of the Run Queue Length metric.
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