Start poolmon, May 18, 2023 · PoolMon Examples poolmon /p While PoolMon is running, press p to toggle through allocations from the paged pool, the nonpaged pool, or both. txt file installed with PoolMon and with the Debugging Tools for Windows packages. Instead, it’s a command-line utility used by developers and system administrators to help diagnose memory pool leaks and other memory-related issues within the Windows kernel The pool tags are identified using tools such as PoolMon, Debugging Tools for Windows, and pooltag. Jul 23, 2025 · Learn how to use PoolMon to find a kernel-mode memory leak by determining which pool tag is associated with the leak. Sep 18, 2013 · Start poolmon. Apparently it's harder than just downloading the installer from the download page as going through the installation steps does not yield a PooMon executable, nor does it give me a "Tools" folder where the Microsoft article says PoolMon lives. Because starting PoolMon changes the data, it must regain a steady state before the data is reliable. The Tool is located in the Installation folder of DDK in the tools\other directory. May 18, 2023 · To start PoolMon, type a command at the command line using the following syntax and parameters. You must restart Windows for this setting to take effect. exe poolmon. Dec 14, 2021 · PoolMon has two separate, but related, sets of commands. To start PoolMon and display data for allocations with a particular tag, use the /i parameter. Hello all, Trying to find the program at fault for a large non-paged memory leak and have tried to install the Windows 10/11 SDK to obtain PoolMon. To detect a memory leak Start PoolMon with the parameters -p -p (display only allocations from the paged pool) and -b (sort by the number of bytes): poolmon -p -p -b Let PoolMon run for a few hours. It’s not a standalone application you download from a typical software store. Jun 2, 2019 · Finding Memory Leaks with PoolMon I’m going to start off by showing you a graph, a graph of one of our Windows applications memory usage… Obviously this isn’t normal, even for Windows, but Jul 23, 2025 · PoolMon can display the names of the Windows components and commonly used drivers that assign each pool tag. sys for data buffers). . The following command displays allocations with the AfdB tag (the tag used by afd. PoolMon Startup Command: To start PoolMon, type a command at the command line using the startup command syntax and parameters. Does While PoolMon is running, press p to toggle through allocations from the paged pool, the nonpaged pool, or both. exe Apr 5, 2025 · PoolMon is a performance monitoring tool developed by Microsoft, primarily used for analyzing memory pool usage in Windows operating systems. poolmon – This is shipped with the Windows Device Driver Kit. Using the PoolMon utility to find a memory leak Start Microsoft GFlags (Global Flags Editor), click the System Registry tab, select Enable Pool Tagging, and click Apply. exe by launching a command shell, changing your current directory to the folder you chose as your install folder, and entering poolmon. PoolMon Run-time Commands: To configure PoolMon while it is running, type a run-time command. Sep 22, 2025 · Where is PoolMon? PoolMon is a diagnostic tool provided by Microsoft that is typically found within the Windows Driver Kit (WDK). It allows system administrators and developers to monitor the allocation and deallocation of memory pools, which is essential for identifying memory leaks and ensuring system stability. This feature uses data from the pooltag. Start poolmon storted by allocated bytes In this case the drivers with the tags DSOb and DSqe have an exessive usage of the paged and nonpaged pool.


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