static void Main(string[] args)
{
var countersPhysical = new PerformanceCounterCategory("PhysicalDisk")
.GetInstanceNames().Where(n => n != "_Total")
.Select(n => new DiskCounter(new PerformanceCounter("PhysicalDisk", "Current Disk Queue Length", n), new PerformanceCounter("PhysicalDisk", "Avg. Disk Queue Length", n)))
.ToList();
var countersHyperV = new List <DiskCounter>();
try
{
countersHyperV = new PerformanceCounterCategory("Hyper-V Virtual Storage Device")
.GetInstanceNames()
.Select(n => new DiskCounter(new PerformanceCounter("Hyper-V Virtual Storage Device", "Queue Length", n), null))
.ToList();
}
catch { } // system does not have Hyper-V
var lastCalc = DateTime.UtcNow.AddYears(-1);
var interval = TimeSpan.FromSeconds(10);
while (true)
{
foreach (var c in countersPhysical.Concat(countersHyperV))
{
c.Sample();
}
if (DateTime.UtcNow > lastCalc.AddSeconds(5))
{
lastCalc = DateTime.UtcNow;
Console.Clear();
Console.WriteLine();
var maxInterval = TimeSpan.FromSeconds(Math.Floor((DateTime.UtcNow - countersPhysical[0].OldestSample).TotalSeconds));
if (maxInterval >= interval)
{
Console.WriteLine($"Disk usage over the last {interval}");
}
else
{
Console.WriteLine($"Disk usage over the last {maxInterval} (selected interval is {interval} but not enough data)");
}
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.White; Console.WriteLine($"{"Busy",10}{"Behind",10}{"Avg. Queue",14} {"Physical Disk"}"); Console.ForegroundColor = ConsoleColor.Gray;
foreach (var stat in countersPhysical.Select(c => new { c.Name, stats = c.CalcStats(interval) }).OrderByDescending(c => c.stats.busy).ThenBy(c => c.Name))
{
Console.WriteLine($"{stat.stats.busy,10:0.0%}{stat.stats.behind,10:0.0%}{stat.stats.queueAvg,14:0.000} {stat.Name}");
}
Console.WriteLine();
if (countersHyperV.Count > 0)
{
Console.ForegroundColor = ConsoleColor.White; Console.WriteLine($"{"Busy",10}{"Behind",10} {"Virtual Disk"}"); Console.ForegroundColor = ConsoleColor.Gray;
foreach (var stat in countersHyperV.Select(c => new { c.Name, stats = c.CalcStats(interval) }).OrderByDescending(c => c.stats.busy).ThenBy(c => c.Name))
{
Console.WriteLine($"{stat.stats.busy,10:0.0%}{stat.stats.behind,10:0.0%} {stat.Name}");
}
Console.WriteLine();
}
Console.WriteLine($"Total samples per disk: {countersPhysical[0].SampleCount:#,0}");
Console.WriteLine($"Press 1-5 to select interval; any key to refresh screen.");
}
Thread.Sleep(200);
while (Console.KeyAvailable)
{
lastCalc = DateTime.UtcNow.AddYears(-1);
var k = Console.ReadKey(true);
if (k.Key == ConsoleKey.D1)
{
interval = TimeSpan.FromSeconds(10);
}
else if (k.Key == ConsoleKey.D2)
{
interval = TimeSpan.FromSeconds(60);
}
else if (k.Key == ConsoleKey.D3)
{
interval = TimeSpan.FromMinutes(10);
}
else if (k.Key == ConsoleKey.D4)
{
interval = TimeSpan.FromHours(1);
}
else if (k.Key == ConsoleKey.D5)
{
interval = TimeSpan.FromHours(24);
}
}
}
}