Buffer

Get-DbaCpuRingBuffer

Get-DbaCpuRingBuffer View Source Patrick Flynn (@sqllensman) Windows, Linux, macOS Synopsis Retrieves historical CPU utilization data from SQL Server’s internal ring buffer for performance analysis Description This command queries sys.dm_os_ring_buffers to extract detailed CPU utilization history for performance troubleshooting and capacity planning. Based on Glen Berry’s diagnostic query, it provides minute-by-minute CPU usage breakdowns that help identify performance patterns and resource contention. The ring buffer stores CPU utilization data in one-minute increments for up to 256 minutes, tracking three key metrics: SQL Server process utilization, other processes utilization, and system idle time.