it took a while to understand the “commit charge” graph. Finally it became clear after reading the Microsoft documentation.
Wouldn’t it be better to display only the size of the pagefile.sys which is calculated by subtracting the current used RAM value from the commit charge value?
In addition the value for “Pagefile installed” is “wrong” after something has been fixed on the system, because CheckMK seems to display the maximum value of all time (?) and not the current value.
I’m beside @cjcox, be very careful with assumptions regarding memory usage, commit charge and page file size.
Commit charge - ram used must not be the real page file usage, it can be
What you see inside the CMK check is exactly this what you see inside your task manager window. Like this example here.
Check Output
It also summarizes the memory in use and memory available along with committed and cached bytes.
In Use – The total memory currently used by the OS, the process and drivers running. Available - This is amount of physical memory that is currently available for use by the operating system. It is equal to the sum of the standby pages and the free pages from the above graph. Committed - Committed memory is the physical memory in use for which space has been reserved in the paging file should it need to be written to disk.
"Not true - if you have no paging file you still have committed memory - committed virtual memory is private, nonshareable virtual memory created by processes or the OS or drives that MAY need to be paged out. This always starts out in RAM and may get paged out if necessary. So committed memory can be backed by RAM (and if you have no paging file, it remains in RAM until the VM is deleted such as at process exit).
As I said in my first post: I understood that after reading the Microsoft Documentation. There is even this screenshot with further explanation (why I thought it’s used ram + Pagefile):
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