public static class PerformanceHelper { public static double GetCPUUsageInPercentage() { ObjectQuery objQuery = new ObjectQuery("SELECT * FROM Win32_PerfFormattedData_PerfOS_Processor WHERE Name=\"_Total\""); ManagementObjectSearcher managementObjectSearcher = new ManagementObjectSearcher(objQuery); ManagementObjectCollection managementObjectCollection = managementObjectSearcher.Get(); double cpu_usage = 0; if (managementObjectCollection.Count > 0) { foreach (ManagementObject managementObject in managementObjectCollection) { try { cpu_usage = 100 - Convert.ToUInt32(managementObject["PercentIdleTime"]); break; } catch (Exception ex) { break; } } } return cpu_usage; } public static Dictionary GetMemoryUsageInfo() { Dictionary keyValuePairs = new Dictionary(); ObjectQuery objQuery = new ObjectQuery("SELECT * FROM Win32_OperatingSystem"); ManagementObjectSearcher searcher = new ManagementObjectSearcher(objQuery); ManagementObjectCollection results = searcher.Get(); Dictionary resourceConsumptionResults = new Dictionary(); foreach (ManagementObject result in results) { var totalVisibleMemory = Math.Round(double.Parse(result["TotalVisibleMemorySize"].ToString()), 2); var totalFreeMemory = Math.Round(double.Parse(result["FreePhysicalMemory"].ToString()), 2); resourceConsumptionResults.Add("Total_Visible_Memory", totalVisibleMemory); resourceConsumptionResults.Add("Free_Physical_Memory", totalFreeMemory); } double totalVisibleMemorySize = Math.Round(resourceConsumptionResults["Total_Visible_Memory"] / (1024 * 1024), 2); double freePhysicalMemory = Math.Round(resourceConsumptionResults["Free_Physical_Memory"] / (1024 * 1024), 2); double totalUsedMemory = totalVisibleMemorySize - freePhysicalMemory; double memory_usage = 0; try { memory_usage = ((totalVisibleMemorySize - freePhysicalMemory) / totalVisibleMemorySize) * 100; keyValuePairs.Add("Total_Visible_Memory", totalVisibleMemorySize); keyValuePairs.Add("Total_Free_Memory", freePhysicalMemory); keyValuePairs.Add("Total_Used_Memory", totalUsedMemory); keyValuePairs.Add("Total_Used_Memory_Percentage", memory_usage); } catch { throw; } return keyValuePairs; } }

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