System Resources

[Scott Turchin]

Does anyone know how the system resources is calculated?

Ie my system currently states I have 83% system resources available..

I'm playing around with a function to determine the load on the system...

So far I have this...hehe

Function GetHealthOfServer() As Long
Local vi As OSVERSIONINFO
Local m As MEMORYSTATUS
Local mPercent As Long
Local pPercent As Long
Local vPercent As Long
'Get version of windows
vi.dwOsVersionInfoSize = SizeOf(vi)
GetVersionEx vi
'Get memory information
GlobalMemoryStatus m

pPercent = (m.dwAvailPhys / m.dwTotalPhys) * 100 'How much Physical ram
vPercent = (m.dwAvailVirtual / m.dwTotalVirtual) * 100 'Virtual Ram
mPercent = m.dwMemoryLoad 'Memory load on system
End Function



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Scott
mailto:[email protected][email protected]</A>

[Scott Turchin]

I'm curious now...
I ran a program that I am working on, and just by opening up ONE created DDT dialog, It created 6 threads, then settled back to 4 when the splash screen was done...
There's 4 open threads for one GUI interface, when it goes out and checks the atomic clock I open a new thread, it increments on Windows 2000 meter, the time returns from teh atomic clock, and then the thread decrements, but where are the other 4 coming from? Just internal stuff??


And how do you determine CPU utilization?? Anyone done this before???


Scott

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Scott
mailto:[email protected][email protected]</A>

[Lance Edmonds]

I would suspect that Winsock is the cause of the additional threads... you are using Winsock (or the PB/DLL encapsulation of Winsock) in your code I assume?

I don't have the information handy, but I remember reading that CPU utilization can be queried from the registry (of all places!)... I also recall that this only works under Windows NT (if my memory serves me correctly... the usual disclaimer applies! ).

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Lance
PowerBASIC Support
mailto:[email protected][email protected]</A>

[Semen Matusovski]

Scott --
About 9x - see http://www.codepile.com/tric20.shtml
About NT - I saw also (maybe I'll remember and will add reference here).
But almost sure that are used logs of perfmon.exe (you can find it in WinNt\system32; all more or less described in it's help)

[This message has been edited by Semen Matusovski (edited April 11, 2000).]

[Michael Meeks]

Here's one that might be easier for you. You will still have to translate the code from VB to PB, but it shouldn't take that long. The results will be worth it!

Option Explicit

' api declaration to get the cursors position
Private Declare Function GetCursorPos Lib "user32" (lpPoint As POINTAPI) As Long

' declare type to store the coordinates
Private Type POINTAPI
    X As Long
    Y As Long
End Type

' api declarations for our CPU meter
Private Declare Function QueryPerformanceCounter Lib "kernel32" (lpPerformanceCount As LARGE_INTEGER) As Long
Private Declare Function QueryPerformanceFrequency Lib "kernel32" (lpFrequency As LARGE_INTEGER) As Long

Const REG_DWORD = 4
Const HKEY_DYN_DATA = &H80000006

Private Declare Function RegQueryValueEx Lib "advapi32.dll" Alias "RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, lpType As Long, lpData As Any, lpcbData As Long) As Long
Private Declare Function RegOpenKey Lib "advapi32.dll" Alias "RegOpenKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
Private Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long

Private Type LARGE_INTEGER
    lowpart As Long
    highpart As Long
End Type

' api declarations to raise our form
Private Declare Function DrawFrameControl Lib "user32" (ByVal hdc As Long, lpRect As RECT, ByVal un1 As Long, ByVal un2 As Long) As Long
Private Declare Function SetRect Lib "user32" (lpRect As RECT, ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long
Private Declare Function OffsetRect Lib "user32" (lpRect As RECT, ByVal X As Long, ByVal Y As Long) As Long

Const DFC_BUTTON = 4
Const DFCS_BUTTON3STATE = &H10

Private Type RECT
    Left As Long
    Top As Long
    Right As Long
    Bottom As Long
End Type

' api declarations to make form stay on top
Private Declare Function SetWindowPos Lib "user32" (ByVal hWnd As Long, ByVal hWndInsertAfter As Long, ByVal X As Long, ByVal Y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long

Const SWP_NOMOVE = &H2
Const SWP_NOSIZE = &H1
Const SWP_SHOWWINDOW = &H40
Const HWND_TOPMOST = -1
Const HWND_NOTTOPMOST = -2


Private Sub Form_Load()

    ' set the two timer intervals
    tmrFormMove.Interval = 1
    tmrCpuStatus.Interval = 500 'used 500 cause our program needs resources too
    
    ' color the background shape and picturebox
    shpBack.BackColor = RGB(0, 10, 90)
    shpBack.BorderColor = RGB(0, 10, 90)
    picStatus.BackColor = RGB(130, 130, 170)
    
    ' raise our form
    RaiseForm
    
    ' initialize our CPU meter
    InitCPU
    
End Sub


Private Sub RaiseForm()
    
    Dim R As RECT
    
    Me.ScaleMode = vbPixels
    SetRect R, 0, 0, Me.ScaleWidth, Me.ScaleHeight
    DrawFrameControl Me.hdc, R, DFC_BUTTON, DFCS_BUTTON3STATE
    OffsetRect R, 0, 22

End Sub


Private Sub InitCPU()

    Dim lData As Long
    Dim lType As Long
    Dim lSize As Long
    Dim hKey As Long
    Dim Qry As String
    
    Qry = RegOpenKey(HKEY_DYN_DATA, "PerfStats\StartStat", hKey)
    
    If Qry <> 0 Then
            MsgBox "Could not open registery!"
        End
    End If
    
    lType = REG_DWORD
    lSize = 4
    
    Qry = RegQueryValueEx(hKey, "KERNEL\CPUUsage", 0, lType, lData, lSize)
    Qry = RegCloseKey(hKey)

End Sub


Private Sub tmrFormMove_Timer()
    
    Dim Point As POINTAPI
    
    ' get the cursorposition
    GetCursorPos Point

    ' multiply the coordinates to convert twips to pixel and place the form
    Me.Left = Point.X * 15 + 200
    Me.Top = Point.Y * 15 + 150
    
     ' make our form stay on top
    SetWindowPos Me.hWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOSIZE + SWP_NOMOVE
    
End Sub


Private Sub tmrCpuStatus_Timer()

    Dim lData As Long
    Dim lType As Long
    Dim lSize As Long
    Dim hKey As Long
    Dim Qry As String
    Dim Status As Long
                  
    Qry = RegOpenKey(HKEY_DYN_DATA, "PerfStats\StatData", hKey)
                
    If Qry <> 0 Then
            MsgBox "Could not open registery!"
        End
    End If
                
    lType = REG_DWORD
    lSize = 4
                
    Qry = RegQueryValueEx(hKey, "KERNEL\CPUUsage", 0, lType, lData, lSize)
    
    Status = Int(lData)

    ' show CPU usage in Label
    lblStatus.Caption = Status & "%"
    
    ' show CPU usage in our selfmade progressbar
    ' when CPU usage is over 80% then color the status red
    If Status < 80 Then
    picStatus.Line (Status, 0)-(0, 10), RGB(255, 245, 85), BF
    Else
    picStatus.Line (Status, 0)-(0, 10), RGB(245, 10, 0), BF
    End If
    picStatus.Line (Status, 0)-(100, 10), RGB(130, 130, 170), BF
    
    Qry = RegCloseKey(hKey)

End Sub

Have a great day!

MWM



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mwm

[Scott Turchin]

Thanks
I took the link, translated the C++ code and posted it in the source code forum, it works, but it's alla bout averages and "At taht very moment", which means you may have to test it repeatedly.

I tested 30 times in a row, 8%, told it to test 300 times, 12%, which is fair, I was draining a bit of processor time doing it

Think I'm good to go now!
Thanks all!

Scott

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Scott
mailto:[email protected][email protected]</A>

[Graham McPhee]

I need to return information on the physical memory of servers (win 2003 OS) as part of an inventory process. The following code only returns a maximum of 2gigabytes even when the server physical memory is greater than this, has any one come across this before?

$INCLUDE "WIN32API.INC"

'TYPE MEMORYSTATUS
'  dwLength AS DWORD
'  dwMemoryLoad AS DWORD
'  dwTotalPhys AS DWORD
'  dwAvailPhys AS DWORD
'  dwTotalPageFile AS DWORD
'  dwAvailPageFile AS DWORD
'  dwTotalVirtual AS DWORD
'  dwAvailVirtual AS DWORD
'END TYPE


FUNCTION PBMAIN()
    DIM temp AS LONG
    DIM Mem_status AS MEMORYSTATUS
    GlobalMemoryStatus  Mem_Status
    STDOUT "PHYSICAL MEMORY      : "+STR$(mem_status.dwTotalPhys/(1024*1024))+" MB"
    STDOUT "PHYSICAL MEMORY AVAIL: "+STR$(mem_status.dwAvailPhys/(1024*1024))+" MB"
    STDOUT "PAGE FILE TOTAL      : "+STR$(mem_status.dwTotalPageFile/(1024*1024))+" MB"
    STDOUT "PAGE FILE AVAIL      : "+STR$(mem_status.dwAvailPageFile/(1024*1024))+" MB"
    STDOUT "VIRTUAL MEMORY       : "+STR$(mem_status.dwTotalVirtual/(1024*1024))+" MB"
    STDOUT "VIRTUAL MEMORY AVAIL : "+STR$(mem_status.dwAvailVirtual/(1024*1024))+" MB"
    WAITKEY$
END FUNCTION

[Paul Dixon]

From MSDN:

On computers with more than 4 GB of memory, the MEMORYSTATUS structure can return incorrect information, reporting a value of –1 to indicate an overflow. If your application is at risk for this behavior, use the GlobalMemoryStatusEx function instead of the GlobalMemoryStatus function.

$INCLUDE "WIN32API.INC"


FUNCTION PBMAIN()
    DIM Mem_status AS MEMORYSTATUSEX
    Mem_status.dwLength = SIZEOF(Mem_status)
    
    GlobalMemoryStatusEx  Mem_Status
    STDOUT "PHYSICAL MEMORY      : "+STR$(mem_status.ullTotalPhys/(1024*1024))+" MB"
    WAITKEY$
END FUNCTION

[Graham McPhee]

Many thanks Paul

That's just what I was looking for