perfmon

Are perfmon performance counters based on the same thing “under the hood” as the ETW events used by xperf?

♀尐吖头ヾ 提交于 2019-12-07 14:39:29
问题 I have recently been becoming acquainted with perfmon and with xperf. Perfmon uses performance counters and xperf uses ETW (event tracing for windows). Perfmon has objects that provide data, whereas xperf uses groups of "providers". As a newbie into this area I am asking whether anyone could tell me whether the performance counters used by perfmon are really based on the same thing under the hood as the ETW events used by xperf and if so, could you make the connection clear. If they aren't

Perfmon can't create data collector set on Windows 7 x64

依然范特西╮ 提交于 2019-12-06 08:23:16
I'm trying to create a data collector set using Perfmon. When I right click 'New -> Data Collector Set' in the User Defined folder, I see the wizard dialog appear. However, the 'Next' and 'Finish' buttons are disabled. All I can do is click on Cancel. Any ideas? Found the answer to this while googling a problem with the disk defragger. The recommendation I found was to (backup first!) remove the registry key: HKLM\Software\Microsoft\RPC\Internet I exported the key for a backup; deleted the key; then rebooted. After reboot I could run the disk defragger and also add my own data collector sets

Issue with perfmon counter value using WMI query

你离开我真会死。 提交于 2019-12-06 05:34:41
I am building EXE and through which i am fetching perfmon counter of application to monitor that using WMI query. I am testing it with my local machine and seems like my code logic gives me incorrect values for some of counters. Below is my code for one of the counter ( CacheTotalHitRatio ) And when i have looked it with perfmon exe in my system then it shows me something different as shown below. I think CacheTotalHitRatio is in percentage and should not be go beyond 100 but my code gives some higher value. What is problem here OR am i doing something wrong here? Please let me know if anyone

Are perfmon performance counters based on the same thing “under the hood” as the ETW events used by xperf?

孤街醉人 提交于 2019-12-06 01:41:02
I have recently been becoming acquainted with perfmon and with xperf. Perfmon uses performance counters and xperf uses ETW (event tracing for windows). Perfmon has objects that provide data, whereas xperf uses groups of "providers". As a newbie into this area I am asking whether anyone could tell me whether the performance counters used by perfmon are really based on the same thing under the hood as the ETW events used by xperf and if so, could you make the connection clear. If they aren't based on the same thing, could you explain how they are different? Perf counters and ETW are two

Get PerformanceCounter by Index

末鹿安然 提交于 2019-12-05 05:11:44
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: [DllImport("pdh.dll", SetLastError = true, CharSet = CharSet.Unicode)] internal static extern UInt32

jmeter压测----环境准备(PerfMon Metrics Collector and Server Agent原理和使用)

南楼画角 提交于 2019-12-05 03:13:45
今天来讲一讲jmeter的压测环境准备,也是PerfMon Metrics Collector 和 Server Agent这两个工具的配置 我们知道进行压测其实就是模拟多并发请求给服务器,然后通过一些性能指标来综合评估服务器所能承受的压力。 在去jmeter官网下载客户端后,是已经自带有压力测试的相关组件的了,执行压测后的聚合报告已经拿到我们的需要的各种响应时间参数了,已经足够我们定位到一个粗略的压测值,那么为了更好的定位和分析瓶颈,还要看的是服务器的相关性能指标,比如cpu、内存、IO读写和TPS等等。 服务器的性能监控jmeter是完全支持的,我们需要两个东西,一个是运行在服务端起到获取相关性能数据并发送给jmeter的名叫Server Agent的东西,还有一个就是jmeter的起到接受Server Agent传递过来的数据并以GUI形式展示的扩展插件啦。 具体可以查看官方的文档: https://jmeter-plugins.org/wiki/PerfMon/ 和 https://jmeter-plugins.org/wiki/PerfMonAgent/ 那么笔者就不照着文档翻译了,在这里总结一下: 1.支持cpu、内存、IO、网络等等超过75个系统指标 2.支持GUI模式和非GUI模式,可以通过配置来以文件的形式保存性能指标 原理:因为jmeter只支持tomcat

What is the best way to interpret Perfmon analysis into application specific observations/data?

梦想的初衷 提交于 2019-12-05 02:15:03
问题 Many of us have used Perfmon tool to do performance analysis. Especially with .Net counters, but there are so many variables going on in Perfmon, that it always becomes hard to interpret Perfmon results in to valuable feedback about my application. I want to use perfmon, (not a tool like Ants Profiler etc) but how do I accurately interpret the observations? Any inputs are welcome. 回答1: I use the Performance Analysis of Logs (PAL) tool: http://pal.codeplex.com/ It's not an "official" Microsoft

Trying to disable Processor idle states (C states) on Windows PC

我的梦境 提交于 2019-12-04 05:26:56
I need to prevent the processor from entering an idle state (non C0 C state). Admittedly I do not know much about processor C and P states so bear with me. We use a camera from a third party vendor which occasionally delivers corrupted frames. The vendor has determined that when the CPU enters an idle state it interferes with the transmission of the frame over the firewire. To confirm this I used the following code on a Windows 7 PC and indeed, disabling the idle states resolved the issue. //WIN7 const DWORD DISABLED = 1; const DWORD ENABLED = 0; GUID *scheme; PowerGetActiveScheme(NULL,

What is the best way to interpret Perfmon analysis into application specific observations/data?

半腔热情 提交于 2019-12-03 17:25:36
Many of us have used Perfmon tool to do performance analysis. Especially with .Net counters, but there are so many variables going on in Perfmon, that it always becomes hard to interpret Perfmon results in to valuable feedback about my application. I want to use perfmon, (not a tool like Ants Profiler etc) but how do I accurately interpret the observations? Any inputs are welcome. I use the Performance Analysis of Logs (PAL) tool: http://pal.codeplex.com/ It's not an "official" Microsoft tool, but I believe the author works for Microsoft. The project seems to be fairly active. In addition to

Perfmon counters to check memory leak

∥☆過路亽.° 提交于 2019-12-03 04:17:16
问题 I want to check the memory leakage issue in my service. I have tried following set of perfmon counters. .NET CLR Memory\# Bytes in all Heaps .NET CLR Memory\Gen 2 Heap Size .NET CLR Memory\# GC handles .NET CLR Memory\# of Pinned Objects .NET CLR Memory\# total committed Bytes .NET CLR Memory\# total reserved Bytes .NET CLR Memory\Large Object Heap size I have referred above set from here Also referred following set: Memory/Available Bytes Memory/Committed Bytes Process/Private Bytes Process