performancecounter

问题 I am working on a background program that will be running for a long time, and I have a external logging program (SmartInspect) that I want to feed with some values periodically, to monitor it in realtime when debugging. I know I can simply fire up multiple programs, like the Task Manager, or IARSN TaskInfo, but I'd like to keep everything in my own program for this, as I also wants to add some simple rules like if the program uses more than X% CPU, flag this in the log. I have a background

问题 I have a program that works fine on VS2008 and Vista, but I'm trying it on Windows 7 and VS2010 / .NET Framework 4.0 and it's not working. Ultimately the problem is that System.Diagnostics.PerformanceCounterCategory.GetCategories() (and other PerformanceCounterCategory methods) is not working. I'm getting a System.InvalidOperationException with the message "Cannot load Counter Name data because an invalid index '' was read from the registry." I can reproduce this with the very simple program

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 6 years ago . There are truckloads of counters available in perfmon for ASP.NET. What are the best (I am thinking of choosing 5-10) that will be the

问题 When considering using performance counters as my companies' .NET based site, I was wondering how big the overhead is of using them. Do I want to have my site continuously update it's counters or am I better off to only do when I measure? 回答1: The performance impact is negligible in updating. Microsoft's intent is that you always write to the performance counters. It's the monitoring of (or capturing of) those performance counters that will cause a degradation of performance. So, only when

问题 PerformanceCounter cpuload = new PerformanceCounter(); cpuload.CategoryName = "Processor"; cpuload.CounterName = "% Processor Time"; cpuload.InstanceName = "_Total"; Console.WriteLine(cpuload.NextValue() + "%"); The output is always 0%, while the cpuload.RawValue is like 736861484375 or so, what happened at NextValue() ? 回答1: The first iteration of he counter will always be 0, because it has nothing to compare to the last value. Try this: var cpuload = new PerformanceCounter("Processor", "%

问题 PerformanceCounter cpuload = new PerformanceCounter(); cpuload.CategoryName = "Processor"; cpuload.CounterName = "% Processor Time"; cpuload.InstanceName = "_Total"; Console.WriteLine(cpuload.NextValue() + "%"); The output is always 0%, while the cpuload.RawValue is like 736861484375 or so, what happened at NextValue() ? 回答1: The first iteration of he counter will always be 0, because it has nothing to compare to the last value. Try this: var cpuload = new PerformanceCounter("Processor", "%

问题 I am facing some critical issue which might be interesting for whom , those who are playing with window azure sdk. I have created on EXE which read performance counter data like CPU, memory, asp.net session from system like queryCollection = ExecuteWMIQuery("SELECT * FROM win32_perfformatteddata_perfdisk_physicaldisk"); and I have aded this EXE in startup task of simple asp.net application which i have uploaded on window Azure. Now when i connecting to RDP of that I can see following errors

问题 Is there a way to query via WMI in C# like you can do with the System.Diagnostics.PerformanceCounter class? Simply put how can I pass it a string like \\localhost\Processor(0)\% Processor Time and it would build the correct WMI query for me? I have huge list of counters in a flat file from a legacy program and I want to move it to a Service which just runs through the flat file and gets the value. 回答1: You can use the WMI Performance Class Counters. An example of this would be polling the

问题 I try to use PerformanceCounter to monitor remote server information in a domain environment, like: var counter = new PerformanceCounter("PhysicalDisk", "Disk Bytes/sec", "_Total", "REMOTE_SERVER"); there is only 1 line of code, running the above code will wait at least 50 seconds. I tried to impersonate the admin etc, still same time. I also tried with PowerShell get-counter, still more or less speed. I tried with windows native Performance Monitoring Tool in computer management, connect to

问题 I am trying to get the NextValue of a PerformanceCounter class using PhysicalDisk . Some reason that I can't seem to find out why, it return's 0 every time. PerformanceCounter pcDiskTime = new PerformanceCounter("PhysicalDisk", "% Disk Time", "_Total"); Single sinDisk = pcDiskTime.NextValue(); //returns 0.0 Using the above and calling pcDiskTime.NextValue return's 0 . I have other counter's that are working just fine and return what I need. .RawValue does return something, but is not the