Been trying to get this work but I just couldn't get the exact solution
PerformanceCounter disk = new PerformanceCounter("LogicalDisk", "% Disk Time", @"F:");
//disk.NextValue(); <------but this doesn't give me exact Active time%
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3learn.microsoft.com/en-us/previous-versions/aa394262(v=vs.85)Hans Passant– Hans Passant2023-03-04 16:53:21 +00:00Commented Mar 4, 2023 at 16:53
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@HansPassant I tried your way to check disk usage "string query = $"SELECT * FROM Win32_PerfFormattedData_PerfDisk_LogicalDisk WHERE Name = 'F:'";" every second. Still not getting accurate it shows 212%, 320%,64%...Dark Knight– Dark Knight2023-03-04 19:23:32 +00:00Commented Mar 4, 2023 at 19:23
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Nvm I had to use "PercentIdleTime" instead of "PercentDiskTime"Dark Knight– Dark Knight2023-03-04 19:31:47 +00:00Commented Mar 4, 2023 at 19:31
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1 Answer
From the link HansPassant sent me, I developed a code and now it works perfect.
string instanceName = "F:";
string query = $"SELECT * FROM Win32_PerfFormattedData_PerfDisk_LogicalDisk WHERE Name = '{instanceName}'";
foreach (ManagementBaseObject result in new ManagementObjectSearcher(query).Get())
{
Console.WriteLine("Disk usage: {0}%", 100-Convert.ToInt32(result["PercentIdleTime"]));
}
Another solution to my previous code is to simply use "% Idle Time" in counterName paramter.
PerformanceCounter counter = new PerformanceCounter("LogicalDisk", "% Idle Time", "F:");
Console.WriteLine("Disk idle time: {0}%", 100-(int)counter.NextValue());