performancecounter

How to get CPU usage for more than 2 cores?

由 孤街醉人 提交于 2019-11-27 14:50:16
I try to get in my program CPU usage divided by a cores. Now I use the PerformanceCounter and changing the InstanceName between 0 and 1 I have the data from 2 cores. PerformanceCounter pc0 = new PerformanceCounter("Processor", "% Processor Time", "0"); PerformanceCounter pc1 = new PerformanceCounter("Processor", "% Processor Time", "1"); How I can get core usage for 3rd, 4th core etc.? Does anyone can help me? Thanks I havent used PerformanceCounter before but is there something wrong with doing this? PerformanceCounter pc0 = new PerformanceCounter("Processor", "% Processor Time", "0");

How to read performance counters on i5, i7 CPUs

由 老子叫甜甜 提交于 2019-11-27 13:10:57
问题 Modern CPUs have quite a lot of performance counters - http://www.intel.com/content/www/us/en/architecture-and-technology/64-ia-32-architectures-software-developer-system-programming-manual-325384.html how to read them? I'm interested in cache misses and branch mispredictions. 回答1: Looks like PAPI has very clean API and works just fine on Ubuntu 11.04. Once it's installed, following app will do what I wanted: #include <stdio.h> #include <stdlib.h> #include <papi.h> #define NUM_EVENTS 4 void

How to determine total size of ASP.Net cache?

由 ╄→гoц情女王★ 提交于 2019-11-27 12:54:05
I'm using the ASP.net cache in a web project, and I'm writing a "status" page for it which shows the items in the cache, and as many statistics about the cache as I can find. Is there any way that I can get the total size (in bytes) of the cached data? The size of each item would be even better. I want to display this on a web page, so I don't think I can use a performance counter. I am looking at my performance monitor and under the ASP.NET Apps v2.0.50727 category I have the following cache related counters: Cache % Machine Memory Limit Used Cache % Process Memory Limit Used There are also a

C# Get used memory in %

由 橙三吉。 提交于 2019-11-27 10:07:46
问题 I've created a performancecounter that can check the total memory usage in %, but the problem is that it doesn't give me the same value as in task manager shows me. for example: my program says 34% but task manager says 40%. Any ideas? NOTE I try to get the available RAM of the system, not the used RAM by a process. Current Code private PerformanceCounter performanceCounterRAM = new PerformanceCounter(); performanceCounterRAM.CounterName = "% Committed Bytes In Use"; performanceCounterRAM

How to detect SqlServer connection leaks in a ASP.net applications?

由 笑着哭i 提交于 2019-11-27 09:51:29
问题 I'm currently doing some GUI testing on a ASP.net 2.0 application. The RDBMS is SQL Server 2005. The host is Win Server 2003 / IIS 6.0. I do not have the source code of the application because it was programmed by an external company who's not releasing the code. I've noticed that the application performs well when I restart IIS but after some testing, after I have opened and closed my browser for a couple of hours, the application starts to get slower and slower. I was wondering if this

Using PerformanceCounter to track memory and CPU usage per process?

由 时间秒杀一切 提交于 2019-11-27 06:59:04
How can I use System.Diagnostics.PerformanceCounter to track the memory and CPU usage for a process? For per process data: Process p = /*get the desired process here*/; PerformanceCounter ramCounter = new PerformanceCounter("Process", "Working Set", p.ProcessName); PerformanceCounter cpuCounter = new PerformanceCounter("Process", "% Processor Time", p.ProcessName); while (true) { Thread.Sleep(500); double ram = ramCounter.NextValue(); double cpu = cpuCounter.NextValue(); Console.WriteLine("RAM: "+(ram/1024/1024)+" MB; CPU: "+(cpu)+" %"); } Performance counter also has other counters than

List all performance counters for a category

由 ◇◆丶佛笑我妖孽 提交于 2019-11-27 06:10:25
问题 Is there a built-in method in System.Diagnostics for retrieving all of the instantiated performance counters for a given CategoryName? We have a number of multi threaded apps using custom performance counters and now need to add a dashboard for displaying the performance statistics. I'd like to make the dashboard in such a way that it does not need to be updated whenever someone adds a new counter to a new piece of code. 回答1: Try this: public void ListCounters(string categoryName) {

PerformanceCounter reporting higher CPU usage than what's observed

由 蹲街弑〆低调 提交于 2019-11-27 04:51:44
问题 I'm currently doing this: PerformanceCounter cpuUsage = new PerformanceCounter("Processor", "% Processor Time", "_Total"); cpuUsage.NextValue(); System.Threading.Thread.Sleep(1000); RV = cpuUsage.NextValue(); I call the function periodically to get CPU usage. When I monitor the system in TaskManager, the CPU usage reported by PerformanceCounter is consistently 15-20% higher than what TaskManager reports (30% in TaskManager = 50% from PerformanceCounter). Maybe there's documentation that I

“Access to the registry key 'Global' is denied” when accessing performance counters

由 大兔子大兔子 提交于 2019-11-27 01:28:19
问题 I'm attempting to read some performance counters from my ASP.NET application. When I do, I get the error "Access to the registry key 'Global' is denied." I have tried following the instructions here and here, using the user IIS AppPool\DefaultAppPool , which is the identity my app pool is configured to use: I have added that user to the Performance Monitor Users group: And after adding the user, I restarted my computer. But I am still getting the error. I have also tried adding the users IUSR

Performance Counter - System.InvalidOperationException: Category does not exist

由 不羁岁月 提交于 2019-11-27 01:24:32
问题 I have following class that returns number of current Request per Second of IIS. I call RefreshCounters every minute in order to keep Requests per Second value refreshed (because it is average and if I keep it too long old value will influence result too much)... and when I need to display current RequestsPerSecond I call that property. public class Counters { private static PerformanceCounter pcReqsPerSec; private const string counterKey = "Requests_Sec"; public static object
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