Tracking Memory Usage
I have a need to be able to record the memory usage of a tested application. I looked through the help files for TestComplete and found the MemUsage property for processes. The problem i...
Forum Discussion
Hi Chris,
You can get the private working set using WMI classes, namely, Win32_PerfRawData_PerfProc_Process.WorkingSetPrivate.
function TestGetPrivateWorkingSet()
{
Log.Message("Notepad's private working set: " + GetPrivateWorkingSet("NOTEPAD") + " bytes");
}
// Returns the private working set, in bytes, of the specified process.
// Parameter:
// ProcessName - the process name without the extension (case-insensitive). E.g. "notepad".
function GetPrivateWorkingSet(ProcessName)
{
var oWMI = GetObject("winmgmts:");
var oPerfData = oWMI.Get("Win32_PerfRawData_PerfProc_Process.Name='" + ProcessName + "'");
return oPerfData.WorkingSetPrivate;
}
If you need to query memory several times throughout your test, you can use the following code with a WMI refresher. This should work faster than calling GetObject("winmgmts:") multiple times:
function Test()
{
InitCounters("notepad");
// Do something
Log.Message(GetPrivateWorkingSet());
// Do something else
Log.Message(GetPrivateWorkingSet());
}
var oCounter;
function InitCounters(ProcessName)
{
var oRefresher = new ActiveXObject("WbemScripting.SWbemRefresher");
var oWMI = GetObject("winmgmts:");
oCounter = oRefresher.Add(oWMI, "Win32_PerfRawData_PerfProc_Process.Name='" + ProcessName + "'");
}
function GetPrivateWorkingSet()
{
oCounter.Refresher.Refresh();
return oCounter.Object.WorkingSetPrivate;
}
