Testlimit v5.24

By Mark Russinovich

Published: November 17, 2016

Download Download Testlimit (234 KB)


Testlimit is a command-line utility that can be used to stress-test your PC and/or applications by simulating low resource conditions for memory, handles, processes, threads and other system objects.

usage: Testlimit [[-h [-u]] | [-p [-n]] | [-t [-n [KB]]] | [-u [-i]] | [-g [object size]] | [-a|-d|-l|-m|-r|-s|-v [MB]] | [-w]] [-c [count]] [-e [seconds]]

Parameter Description
-a Leak Address Windowing Extensions (AWE) memory in specified MBs (default is 1)
-c Count of number of objects to allocate (default is as many as possible). This must be the last option specified
-d Leak and touch memory in specified MBs (default is 1)
-e Seconds elapsed between allocations (default is 0)
-g Create GDI handles of specified size (default 1 byte). Specify a size of 0 to cause GDI object exhaustion
-h Create handles. Specify -u to also allocate file objects
-i Exhaust USER desktop heap
-l Allocate the specified amount of large pages (rounded to large size multiple)
-m Leak memory in specified MBs (default is 1)
-p Create processes - add -n to set min working set. Add -n to set min working set of processes to smallest
-r Reserve memory in specified MBs (default is 1)
-s Leak shared memory in specified MBs (default is 1)
-t Create threads - add -n to specify minimum stack reserve (in KB)
-u Create USER handles to menus
-v VirtualLock memory in specified MBs (default is 1)
-w Reset working set minimum to highest possible value

Runs on:

  • Client: Windows Vista and higher
  • Server: Windows Server 2003 and higher
  • Nano Server: 2016 and higher
  • Windows Internals Book The official updates and errata page for the definitive book on Windows internals, by Mark Russinovich and David Solomon.
  • Windows Sysinternals Administrator's Reference The official guide to the Sysinternals utilities by Mark Russinovich and Aaron Margosis, including descriptions of all the tools, their features, how to use them for troubleshooting, and example real-world cases of their use.


DownloadDownload Testlimit (234 KB)
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