perfmon | 易学教程

Get Total CPU # via WMI or T-SQL

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问题 I don't want the list of all process, just a total percentage like you would see in windows taskmanager. I will be using this information via coldfusion, but i am having all kinds of problems just trying to find a total number of current cpu usage. I don't care if it comes from wmi or t-sql, i just want a total number for which i will be using to populate a gauge chart that via ajax will be showing my current cpu usage percentage... Thank You... 回答1: You can use the Win32_PerfRawData_PerfOS

zabbix 结合windows性能监控工具perfmon进行监控

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Perfmon是一款实时的性能监视器，可用于监视CPU使用率、内存使用率、硬盘读写速度、网络速度等，zabbix结合其使用可以很方便地监控到windows系统上的性能数据。首先在我们来看看windows上的perfmon。快捷键“WIN+R”，输入“perfmon”后，进入性能监视器。如图1. 图1 在点击图1中的“+”号，选中“processor”类别下的Interrupts/sec，如图2，图3. 图2 图3 图3中可以实时看到该项(代表的意思是：处理器每秒钟接收并维护的硬件中断的平均值)的值。另外我们可以使用Get-Counter命令进行该值的获取。打开powershell,在上面执行Get-Counter，命令如图5。首先获取该计数器的完整表达，如图4. 图4 图5 进入到zabbix界面。使用perf_counter键值（结合性能计数器使用）调用相应的计数器进行监控测试。如图7。键值perf_counter介绍如图6. 图6 图7 查看相应被监控主机最新数据的相应值得到结果如图8. 图8 性能计数器对应项的用法还有很多，现在只是介绍其中一种，另外还可以参考资料： https://wenku.baidu.com/view/78e9ec0c581b6bd97f19ea0d.html 来源： 51CTO 作者： Zabbix_Z大叔链接： https://blog

PerformanceCounterCategory.Exists throwing 'Input string was not in a correct format.'

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问题 When I'm checking for the existance of a performace category using PerformanceCounterCategory.Exists("myCategory") on a system (clean install of XP SP3) where the category doesn't exist I'm getting the following exception thrown ... Input string was not in a correct format. at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) at

Missing processor/memory counters in the Windows XP Performance Monitor application (perfmon)

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问题 Perfmon is a Windows utility that helps the developer to find bottlenecks in his applications, by measuring system counters. I was reading a perfmon tutorial and from this list of essential counters I have found the following ones on my machine: PhysicalDisk\Bytes/sec_Total Network Interface\Bytes Total/Sec\nic name But I haven't found the following counters nowhere: Processor\% Processor Time_Total Process\Working Set_Total Memory\Available MBytes Where do I find them? Note that my Windows

Strange memory usage pattern in C# Windows Form app

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问题 I am trying to understand what is going on in app written in C#. Below are several images taken from Performance Monitor. The blue line is #Bytes in all Heaps. The green line is Large Object Heap Size. I start the app and log me in. The app remains idle. The first image shows that LOH increases for some reason and then drops. A pattern is very clear. What is responsible for such behavior? More. I do some heavy processing starting in A (see image below) using an Oracle Database through ODP.NET

How to see DB connections via JMeter?

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问题 M newbie to JMeter, Can we track the active DB connections via Jmeter? Is there any parameter or thing in Jmeter which can do the job easier. Right now I am just monitoring the DB connections via terminal. Is it possible with Jmeter 回答1: Given that your database is MySQL: Download MySQL Connector/J, extract mysql-connector-java-x.x.xx-bin.jar , drop it to /lib folder of your JMeter installation, restart JMeter Add Thread Group to the test plan. Configure it as follows: Number of threads: 1

How to see DB connections via JMeter?

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Get PerformanceCounter by Index

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问题 I want to access the "Processor Time %" counter in an application which runs on systems with different localizations. To do so, I want to access the counter by its index, which is guaranteed to be unique (see https://support.microsoft.com/en-us/kb/287159). The following code works and gives me the correct result for the current locale, but to open the performance counter I also need the counter's category name (see constructors for the PerformanceCounter class) as well as the instance name:

Performance Counters NextValue() Very Slow (1,000+ Counters)

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问题 In our application, we are using the Windows Performance Counters to store some of our application metrics, which are later retrieved in some web services. I'm having an issue with the amount of time it takes to read the value from the counters. I've looked through the rest of my app and everything is fine, performance wise, but reading from the counters within a loop (from List or array) takes a painful amount of time. Example code: // This triggers a read of the counter's initial value

Relog can't open a binary log file if executed from C#

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问题 I've written a simple windows service to watch a folder and run relog (the windows tool to export data from binary perf mon files) on any files that arrive. When I run it from my c# process (using System.Diagnostics.Process.Start()) I get: Error: Unable to open the specified log file. But if I copy and paste the command into a console window it works fine. I've looked all over the net but everything seems to point to a corrupt file, which I know is not the case as I can import perfectly when