CPU USAGE VS PHYSICAL MEMORY DRIVERS

Only core OS components and some drivers run in kernel mode.

Process | % Privileged Time вЂ“ Like % Processor Time except that it includes just the time the processor spends in kernel mode.

So when you see 100% value, it doesnвЂ™t mean the CPU maxed out. Note that this number reaches up to 100 *. If the Processor Time is 0, then it might be a deadlock or stuck on an I/O request. On hung apps, if the Processor Time maxes out, then the process is stuck on a CPU-bound operation like an endless loop.

Process | % Processor Time (Total or per process) вЂ“ Shows CPU usage for the entire machine or a specific process.

On hung applications weвЂ™ll check one thing, whereas for a slow performance weвЂ™ll check other things. There are different important counters for each type of troubleshooting. Also, copying the data to a different machine kind of defeats the purpose of live monitoring.ДЄs far as Azure, I didnвЂ™t check this myself, but according to application insights documentation, performance counters should work just as well when your server is on a Linux machine. Unfortunately, PerfView is great for ETW but not as suited for performance counters.

CPU USAGE VS PHYSICAL MEMORY WINDOWS

The collected files can be copied to a windows machine and viewed with PerfView. ThereвЂ™s also a Microsoft cross-platform tool called dotnet-trace that allows collecting performance counters (and ETW events) on Linux. Right now, Linux has a Performance Counter equivalent called Perf, which you can use. Performance counters support in Linux is still not great but Microsoft is working to better this situation. These might be from the OS, from ASP.NET or your code. Just click Add metric and choose the counter.Д«y editing nfig, you can add whatever counters you want. In there, youвЂ™ll be able to view any of the default counters in a graph much like in PerfMon. You can navigate in Azure Portal to the Application insight resource | Metrics. If you have Application Insights set up, then it collects some counters by default without any additional configuration. HereвЂ™s the documentation on setting up the counters on your server. You can do it with Application Insights and with Azure Diagnostics.

There are a couple of ways to monitor performance counters in Azure. Monitoring Performance Counters in an Azure App Service blg file will be created, which you can later open in PerfMon. To start recording, right-click on the collector set and select Start. The new set will appear in the left menu in Data Collector Sets | User Defined. Give it an appropriate name and log directory. Then, right-click on the вЂњPerformance MonitorвЂќ item in the left menu and select New | Data Collector Set. To do that, first, add whatever counters you want to be recorded. You can also save monitor sessions to a file. You can change color, scale, line style, and other properties. Once added, the new counters will appear in the graph. This means the counter will measure only bytes of the process вЂAzureStorageEmulatorвЂ™. In this counter, like in many others, the instances are processes.

In the above image, I added the counter # Bytes in all Heaps with the instance AzureStorageEmulator. Each counter might contain multiple instances that allow monitoring that counter in more specific detail. In the dialog that appears youвЂ™ll see Categories, Counters and Instances. To add more counters, click on the вЂњ+вЂќ icon. You might see a single default counter % Processor Time already exists. To see performance counters live, click on Performance Monitor in the left menu. This tool is already included in Windows and you can find it by typing вЂњPerfMonвЂќ in the start menu or even running the вЂњperfmonвЂќ command anywhere in the command line. The main tool to monitor performance counters in Windows is Performance Monitor (also known as PerfMon).

CPU USAGE VS PHYSICAL MEMORY HOW TO

In this article, weвЂ™ll see how to monitor performance counters with PerfMon, how to monitor them in Azure, which are the most valuable counters and how to write your own custom counters in code. For example, if you want to find out about Memory Usage of a process, there are counters for Private Bytes, Virtual Bytes, Working Set, Working Set вЂ“ Private, Gen X Collections, % Time in GC, Large Object Heap Size, and many more. There are hundreds of different counters you can monitor and they come as specific as possible. Request response time in your ASP.NET application.Number of requests in your ASP.NET application.Number of exceptions thrown in a process.Here are some of the things you can measure with performance counters:

Cpu usage vs physical memory