SQL Server Wow64 Perfmon Issues

I recently came across some issues running perfmon on Windows Server 2003 where the OS is 64-bit and SQL Server is 32-bit (Wow64). The SQL Performance counters were not appearing as the default Perfmon is 64-bit, which is unable to read the 32-bit SQL counters. Running the 32-bit version of Perfmon allows us to read…

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SQL Server and Windows Memory

SQL Server 2000 Enterprise Edition introduced support for the use of Windows 2000 Address Windowing Extensions (AWE) to address 8GB of memory on Windows 2000 Advanced Server and 32GB of memory on Windows 2000 Datacentre. With AWE, SQL Server can reserve memory not in use by other applications and the OS. Each instance must statically allocate…

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Windows Memory (PAE/AWE/3GB)

PAE (Physical Address Extension) PAE is the added ability of the IA32 processor to address more than 4GB of physical memory. The following OS’s can use PAE to take advantage of physical memory beyond 4GB: Microsoft Windows 2000 Advanced Server Microsoft Windows 2000 Datacentre Server Microsoft Windows Server 2003 Enterprise Edition Microsoft Windows Server 2003 Datacentre Edition To enable PAE,…

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