The Best SQL Server Performance Monitor Counters to Analyze Now that you’ve got the hang of adding counters, here’s the full list we need to add, including the ones mentioned above: These are listed OBJECT first, then COUNTER Memory – Available MBytes Paging File – % Usage Physical Disk – Avg. Disk sec/Read Physical Disk – Avg. Disk sec/Write Physical Disk – Disk Reads/sec Physical Disk – Disk Writes/sec Processor – % Processor Time SQLServer: Buffer Manager – Buffer cache hit ratio SQLServer: Buffer Manager – Page life expectancy SQLServer: General Statistics – User Connections SQLServer: Memory Manager – Memory Grants Pending SQLServer: SQL Statistics – Batch Requests/sec SQLServer: SQL Statistics – Compilations/sec SQLServer: SQL Statistics – Recompilations/sec System – Processor Queue Length