Gets the amount of physical memory that is currently in use, and therefore unavailable, as reported by the host.
GetMemoryLoad returned successfully.
The CLR has not been loaded into a process, or the CLR is in a state in which it cannot run managed code or process the call successfully.
The call timed out.
The caller does not own the lock.
An event was canceled while a blocked thread or fiber was waiting on it.
An unknown catastrophic failure occurred. When a method returns E_FAIL, the CLR is no longer usable within the process. Subsequent calls to hosting methods return HOST_E_CLRNOTAVAILABLE.
GetMemoryLoad wraps the Win32 GlobalMemoryStatus function. The value of pMemoryLoad is the equivalent of the dwMemoryLoad field in the MEMORYSTATUS structure returned from GlobalMemoryStatus.
The runtime uses the return value as a heuristic for the garbage collector. For example, if the host reports that the majority of memory is in use, the garbage collector may elect to collect from multiple generations to increase the amount of memory that can potentially become available.