Merge ResourceMonitoringOptions.Linux.cs to ResourceMonitoringOptions.cs (#5580)

Author: makazeu

src/Libraries/Microsoft.Extensions.Diagnostics.ResourceMonitoring/ResourceMonitoringOptions.Linux.cs

@@ -15,8 +15,11 @@ public partial class ResourceMonitoringOptions
     internal const int MaximumSamplingWindow = 900000; // 15 minutes.
     internal const int MinimumSamplingPeriod = 1;
     internal const int MaximumSamplingPeriod = 900000; // 15 minutes.
+    internal const int MinimumCachingInterval = 100;
+    internal const int MaximumCachingInterval = 900000; // 15 minutes.
     internal static readonly TimeSpan DefaultCollectionWindow = TimeSpan.FromSeconds(5);
     internal static readonly TimeSpan DefaultSamplingInterval = TimeSpan.FromSeconds(1);
+    internal static readonly TimeSpan DefaultRefreshInterval = TimeSpan.FromSeconds(5);
 
     /// <summary>
     /// Gets or sets the maximum time window for which utilization can be requested.
@@ -54,4 +57,28 @@ public partial class ResourceMonitoringOptions
     /// </remarks>
     [TimeSpan(MinimumSamplingWindow, MaximumSamplingWindow)]
     public TimeSpan PublishingWindow { get; set; } = DefaultCollectionWindow;
+
+    /// <summary>
+    /// Gets or sets the default interval used for refreshing values reported by <c>"process.cpu.utilization"</c> metrics.
+    /// </summary>
+    /// <value>
+    /// The default value is 5 seconds.
+    /// </value>
+    /// <remarks>
+    /// This is the time interval for a metric value to fetch resource utilization data from the operating system.
+    /// </remarks>
+    [TimeSpan(MinimumCachingInterval, MaximumCachingInterval)]
+    public TimeSpan CpuConsumptionRefreshInterval { get; set; } = DefaultRefreshInterval;
+
+    /// <summary>
+    /// Gets or sets the default interval used for refreshing values reported by <c>"dotnet.process.memory.virtual.utilization"</c> metrics.
+    /// </summary>
+    /// <value>
+    /// The default value is 5 seconds.
+    /// </value>
+    /// <remarks>
+    /// This is the time interval for a metric value to fetch resource utilization data from the operating system.
+    /// </remarks>
+    [TimeSpan(MinimumCachingInterval, MaximumCachingInterval)]
+    public TimeSpan MemoryConsumptionRefreshInterval { get; set; } = DefaultRefreshInterval;
 }