How to obtain the machine's memory and CPU information?

I recently worked on a project where I needed to obtain the CPU and memory usage of the machine. I spent some time searching online and did some testing myself. To sum up, there are basically two ways: one is to use WMI (2 types), and the other is to use Performance counter.

1. Use WMI to create connection to the computer passing username and password. Once the connection is created, query the CPU& memory by passing the query, similar as SQL. This way can get CPU & memory for remote PC and local PC. For example:

System.Management.ConnectionOptions Conn = new ConnectionOptions();

Conn.Username = mpusername;

                Conn.Password = mppwd;

           string scopestring = "//" + mpserver + "/root/cimv2";

                       through '''''' ( ); ##                                                                                                                                                                                        mos. , cannot be used, finally found this class "Win32_PerfRawData_PerfOS_Memory"

ManagementObjectCollection mcr = mcp.getQueryResult("select * from Win32_ComputerSystem");

         

                                     {

                                                                                                                                                                               }

        }

ManagementObjectCollection MOC = mcp.getQueryResult ("Select * from Win32_perFrawdata_perfos_memory");

Foreach (Managementobject MoC) {

String avilable = MO.GetPropertyValue ("AvailableBytes"). Tostring ();

avilablem = long.parse (avilation);

}

2. Get Local's CPU and Momory Information Passing The WMI Classes, SUCH As " Win32_Processor", "Win32_OperatingSystem"

ManagementClass mc = new ManagementClass("Win32_OperatingSystem");

    ManagementObjectCollection moc = mc.GetInstances();

3. Use performance counter to get performance data passing the performance counter name, such as monitor.PerformanceCounterFun("Processor", "_Total", "% Processor Time"). Normally we shoud get performance counter data several times, then use the average values.



Although these are relatively simple, I still want to record them. I hope they can be useful to everyone!

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