如何通过WMI查询获得以GB为单位的总物理内存(ram)信息

Question

我知道如何从win32_computersystem类获得总物理内存。但这是以字节或kb为单位的。我想要以MB或GB为单位的信息。在wmi (wql)查询。Wmic也可以工作。

Answer 1

您可以转换Win32_ComputerSystem的TotalPhysicalMemory。试试这个:

using System;
using System.Management;
namespace WMISample
{
    public class MyWMIQuery
    {
        public static void Main()
        {
            try
            {
                ManagementObjectSearcher searcher =
                    new ManagementObjectSearcher("root\CIMV2",
                    "SELECT TotalPhysicalMemory FROM Win32_ComputerSystem");
                foreach (ManagementObject queryObj in searcher.Get())
                { 
                    double dblMemory;
                    if(double.TryParse(Convert.ToString(queryObj["TotalPhysicalMemory"]),out dblMemory))
                    {
                        Console.WriteLine("TotalPhysicalMemory is: {0} MB", Convert.ToInt32(dblMemory/(1024*1024)));
                        Console.WriteLine("TotalPhysicalMemory is: {0} GB", Convert.ToInt32(dblMemory /(1024*1024*1024)));
                    }
                }
            }
            catch (ManagementException e)
            {
            }
        }
    }
}

Answer 2

必须手动转换该属性的值。此外，最好使用Win32_PhysicalMemory WMI类。

试试这个示例

using System;
using System.Collections.Generic;
using System.Management;
using System.Text;
namespace GetWMI_Info
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                ManagementScope Scope;
                Scope = new ManagementScope(String.Format("\\{0}\root\CIMV2", "."), null);
                Scope.Connect();
                ObjectQuery Query = new ObjectQuery("SELECT Capacity FROM Win32_PhysicalMemory");
                ManagementObjectSearcher Searcher = new ManagementObjectSearcher(Scope, Query);
                UInt64 Capacity = 0;
                foreach (ManagementObject WmiObject in Searcher.Get())
                {
                    Capacity+= (UInt64) WmiObject["Capacity"];
                }
                Console.WriteLine(String.Format("Physical Memory {0} gb", Capacity / (1024 * 1024 * 1024))); 
                Console.WriteLine(String.Format("Physical Memory {0} mb", Capacity / (1024 * 1024)));
            }
            catch (Exception e)
            {
                Console.WriteLine(String.Format("Exception {0} Trace {1}", e.Message, e.StackTrace));
            }
            Console.WriteLine("Press Enter to exit");
            Console.Read();
        }
    }
}

Answer 3

想提一下，我使用了Win32_PhysicalMemory Capacity属性，直到我在Windows Server 2012上遇到不一致的结果。现在我使用两个属性(Win32_ComputerSystem:TotalPhysicalMemory和Win32_PhysicalMemory:Capacity)并选择两者中较大的

Answer 4

对于现在登陆这里的任何人(这篇文章是10年前的)

Get-WmiObject在PowerShell 3.0及以上版本中已弃用。(来源:https://ss64.com/ps/get-wmiobject.html)

Get-WmiObject被Get-CimInstance取代，这在很多方面都好得多!

如果您仍然想这样做，请考虑使用以下-

<标题> 代码

$MemoryUncleaned = (Get-CimInstance Win32_PhysicalMemory | Measure-Object -Property capacity -Sum).sum /1gb
$Memory = $MemoryUncleaned.ToString() + "GB"
$Memory

<标题> 输出

64GB