Here is a partial example of the output from this extension: 0: kd> !poolusedġ394 1 520 0 0UNKNOWN pooltag '1394', please update pooltag.txtġ0 0UNKNOWN pooltag '1MEM', please update pooltag.txtĢ0 0UNKNOWN pooltag '2MEM', please update pooltag.txtģMEM 3 248 0 0UNKNOWN pooltag '3MEM', please update pooltag.txtĨ0 0PS/2 kb and mouse, Binary: i8042prt.sysĪGP 1 344 2 384UNKNOWN pooltag 'AGP ', please update pooltag.txtĪcpA 3 192 1 504ACPI Pooltags, Binary: acpi.sysĪcpB 0 0 4 576ACPI Pooltags, Binary: acpi.sysĪcpD 40 13280 0 0ACPI Pooltags, Binary: acpi.sysĪcpF 6 240 0 0ACPI Pooltags, Binary: acpi.sysĪcpM 0 0 1 128ACPI Pooltags, Binary: acpi.sysĪcpO 4 208 0 0ACPI Pooltags, Binary: acpi.sys In both cases, the display includes the number of currently outstanding allocations for the given tag and the number of bytes being consumed by those allocations. The display for this command shows the memory use for each tag in paged pool and nonpaged pool.

If you stop executing the extension before it completes, the debugger displays partial results. On Windows XP and earlier versions of Windows, you must enable pool tagging by using Gflags. Pool tagging is permanently enabled on Windows Server 2003 and later versions of Windows. The !poolused extension gathers data from the pool tagging feature of Windows. DLLįor information about memory pools and pool tags, see the Windows Driver Kit (WDK) documentation and Microsoft Windows Internals, by Mark Russinovich and David Solomon. Unless an asterisk is used, TagString must be exactly four characters in length. The asterisk (*) can be used to represent any number of characters the question mark (?) can be used to represent exactly one character. TagString is a case-sensitive ASCII string. Note You can use the !session command to switch between sessions. (Windows Server 2003 and later) Displays the session pool instead of the standard pool. Sorts the display by the amount of paged memory use. Sorts the display by the amount of nonpaged memory use. The default is 0x0, which produces summary information, sorted by pool tag.ĭisplays more detailed (verbose) information. This can be any combination of the following bit values, except that bits 1 (0x2) and 2 (0x4) cannot be used together.

Specifies the amount of output to be displayed and the method of sorting the output. The !poolused extension displays memory use summaries, based on the tag used for each pool allocation.

Tag debugging tools for windows