Process::PeakVirtualMemorySize64 Property

 

Gets the maximum amount of virtual memory, in bytes, used by the associated process.

Namespace:   System.Diagnostics
Assembly:  System (in System.dll)

public:
[ComVisibleAttribute(false)]
property long long PeakVirtualMemorySize64 {
	long long get();
}

Property Value

Type: System::Int64

The maximum amount of virtual memory, in bytes, allocated for the associated process since it was started.

Exception Condition
PlatformNotSupportedException

The platform is Windows 98 or Windows Millennium Edition (Windows Me), which does not support this property.

The value returned by this property represents the maximum size of virtual memory used by the process since it started, in bytes. The operating system maps the virtual address space for each process either to pages loaded in physical memory, or to pages stored in the virtual memory paging file on disk.

This property can be used to monitor memory usage on computers with 32-bit processors or 64-bit processors. The property value is equivalent to the Virtual Bytes Peak performance counter for the process.

Win98WinMe

This property is not supported on Windows 98 or Windows Millennium Edition (Windows Me).

The following code example starts an instance of the Notepad application. The example then retrieves and displays various properties of the associated process. The example detects when the process exits, and displays its exit code and peak memory statistics.

#using <system.dll>

using namespace System;
using namespace System::Diagnostics;
int main()
{

   // Define variables to track the peak
   // memory usage of the process.
   _int64 peakPagedMem = 0,peakWorkingSet = 0,peakVirtualMem = 0;
   Process^ myProcess = nullptr;
   try
   {

      // Start the process.
      myProcess = Process::Start( "NotePad.exe" );

      // Display the process statistics until
      // the user closes the program.
      do
      {
         if (  !myProcess->HasExited )
         {

            // Refresh the current process property values.
            myProcess->Refresh();
            Console::WriteLine();

            // Display current process statistics.
            Console::WriteLine( "{0} -", myProcess );
            Console::WriteLine( "-------------------------------------" );
            Console::WriteLine( "  physical memory usage: {0}", myProcess->WorkingSet64 );
            Console::WriteLine( "  base priority: {0}", myProcess->BasePriority );
            Console::WriteLine( "  priority class: {0}", myProcess->PriorityClass );
            Console::WriteLine( "  user processor time: {0}", myProcess->UserProcessorTime );
            Console::WriteLine( "  privileged processor time: {0}", myProcess->PrivilegedProcessorTime );
            Console::WriteLine( "  total processor time: {0}", myProcess->TotalProcessorTime );
			Console::WriteLine("  PagedSystemMemorySize64: {0}", myProcess->PagedSystemMemorySize64);
            Console::WriteLine("  PagedMemorySize64: {0}", myProcess->PagedMemorySize64);

            // Update the values for the overall peak memory statistics.
            peakPagedMem = myProcess->PeakPagedMemorySize64;
            peakVirtualMem = myProcess->PeakVirtualMemorySize64;
            peakWorkingSet = myProcess->PeakWorkingSet64;
            if ( myProcess->Responding )
            {
               Console::WriteLine( "Status = Running" );
            }
            else
            {
               Console::WriteLine( "Status = Not Responding" );
            }
         }
      }
      while (  !myProcess->WaitForExit( 1000 ) );
      Console::WriteLine();
      Console::WriteLine( "Process exit code: {0}", myProcess->ExitCode );

      // Display peak memory statistics for the process.
      Console::WriteLine( "Peak physical memory usage of the process: {0}", peakWorkingSet );
      Console::WriteLine( "Peak paged memory usage of the process: {0}", peakPagedMem );
      Console::WriteLine( "Peak virtual memory usage of the process: {0}", peakVirtualMem );
   }
   finally
   {
      if ( myProcess != nullptr )
      {
         myProcess->Close();
      }
   }

}

LinkDemand

for full trust for the immediate caller. This member cannot be used by partially trusted code.

.NET Framework
Available since 2.0
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