Retrieving node information in WMI causes memory leaks
Hi, Inquiry Summary Retrieving node information in WMI causes memory leaks [Environment] Execution Environment Microsoft Windows Server 2016 Datacenter 10.0.14393 N/A build 14393 Multiprocessor Free Application Build Environment Microsoft Windows Server 2012 R2 Standard Microsoft Visual Studio Professional 2015 Version 14.0.25420.01 Update 3 Visual C++ 2015 00322-50052-73614-AA667 Inquiries. A module created in VC++ has a daemon that gets the node information in WMI. This module is experiencing a memory leak. I created a test program to get the values of VirtualSize and WorkingSetSize repeatedly with reference to the following site The test program also showed a memory leak when I created https://docs.microsoft.com/en-us/windows/win32/wmisdk/example-creating-a-wmi-application Below are the results of 20,000 attempts. VirtualSize is 7340032 bytes, 702,728,736 bytes increase. ----- ... 0 wmitest.exe VirtualSize:57511936 WorkingSetSize:6836224 1 wmitest.exe VirtualSize:57511936 WorkingSetSize:7028736 2 wmitest.exe VirtualSize:57511936 WorkingSetSize:7036928 3 wmitest.exe VirtualSize:57511936 WorkingSetSize:7041024 4 wmitest.exe VirtualSize:57511936 WorkingSetSize:7041024 5 wmitest.exe VirtualSize:57511936 WorkingSetSize:7041024 6 wmitest.exe VirtualSize:57511936 WorkingSetSize:7045120 7 wmitest.exe VirtualSize:57511936 WorkingSetSize:7045120 8 wmitest.exe VirtualSize:57511936 WorkingSetSize:7045120 9 wmitest.exe VirtualSize:57511936 WorkingSetSize:7045120 1022 wmitest.exe VirtualSize:57511936 WorkingSetSize:7770112 1023 wmitest.exe VirtualSize:57511936 WorkingSetSize:7770112 1024 wmitest.exe VirtualSize:58560512 WorkingSetSize:7831552 1025 wmitest.exe VirtualSize:58560512 WorkingSetSize:7847936 : : 2798 wmitest.exe VirtualSize:58560512 WorkingSetSize:8470528 2799 wmitest.exe VirtualSize:58560512 WorkingSetSize:8536064 2800 wmitest.exe VirtualSize:60657664 WorkingSetSize:8650752 2801 wmitest.exe VirtualSize:60657664 WorkingSetSize:8654848 : : 9242 wmitest.exe VirtualSize:60657664 WorkingSetSize:10366976 9243 wmitest.exe VirtualSize:60657664 WorkingSetSize:10375168 9244 wmitest.exe VirtualSize:64851968 WorkingSetSize:10653696 9245 wmitest.exe VirtualSize:64851968 WorkingSetSize:10665984 : : 19997 wmitest.exe VirtualSize:64851968 WorkingSetSize:13864960 19998 wmitest.exe VirtualSize:64851968 WorkingSetSize:13864960 19999 wmitest.exe VirtualSize:64851968 WorkingSetSize:13864960 ----- [Questions] (1) Are there workarounds, bug information, HotFix, etc. for the above? (2) Is there anything I can do to help determine the cause of the problem?
