服務(wù)器遇到一個問題

百度了下 基本發(fā)現(xiàn)是 四路的 windows 服務(wù)器的問題. 造成一些 性能降低. 然后查看了下幾個虛擬機(jī)

的確是設(shè)置的4個虛擬插槽

根據(jù)百度的結(jié)果 要么改配置文件 要么改 這個四路 感覺講四路降低成2路最簡單了

建議進(jìn)行處理

或許是整個事情的文檔記錄

然后解決辦法為：

先mark 一下 再慢慢看解決方案 組要是還沒看懂。

http://blog.sina.com.cn/s/blog_004175870101mzfl.html

VM的網(wǎng)站

https://kb.vmware.com/s/article/2231

設(shè)備 naa.6006016004102900751132ac8de3e211 性能降低。I/O 滯后時間

已從平均值 516 微秒增加到 10332 微秒。

導(dǎo)致這個原因和解決辦法了：這原因是主要是有VM性能監(jiān)控導(dǎo)致的，具體原因VMware工程師也說不清楚，解決辦法是更改VM屬性參數(shù)。如下截圖:

Windows Virtual Machines with Latency-Sensitive I/O Workloads Can Slow Down in Four-Way SMP Configurations (2231)

Try setting the virtual machine configuration option monitor.idleLoopSpinUS = to increase the amount of time spent spinning in the idle loop (values greater than 100 and less than 4000 are recommended, for example 1000 or 2000). For example:

Schedule some down time.

Power off the virtual machine.

Add

monitor.idleLoopSpinUS = 1000

to the configuration file of the virtual machine (.vmx extension).

Note: For instructions on how to edit the .vmx file, see Tips for editing a .vmx file

Power on the virtual machine.

You can set monitor.idleLoopSpinUS = -1 to turn off the idle loop handler and allow the virtual machine to spin in its idle loop as determined by the guest operating system. However, VMware doesn‘t recommend using monitor.idleLoopSpinUS = -1 unless necessary, because it can cause the guest operating system to spin unnecessarily in its idle loop, resulting in unnecessary host CPU utilization possibly diverting CPU resources from other virtual machines. You can also use a one-way or two-way virtual machine.

具體您可以打開KB連接按照提示操作。

===========================

Windows Virtual Machines with Latency-Sensitive I/O Workloads Can Slow Down in Four-Way SMP Configurations?(2231)

Details

Under certain conditions, four-way Windows virtual machines, and to a lesser extent, two-way Windows virtual machines may slow down compared to the same workload run in a uniprocessor virtual machine. The virtual machine also exhibits an increased amount of idle time. This can happen in cases where there is not sufficient work to keep the processors busy and when the workload has a low rate of external interrupts.

ESX Server 3.0.x includes a specialized virtual machine idle loop handler, which controls the number of microseconds a Windows?SMP virtual machine spins in its idle loop before ESX Server halts the virtual machine. For ESX Server 3.0.x, the default value is 100. For some workloads, the delay caused by halting and then resuming the VCPUs causes a measurable slowdown as the number of VCPUs is increased.

Solution

Try setting the virtual machine configuration option?monitor.idleLoopSpinUS = ?to increase the amount of time spent spinning in the idle loop (values greater than 100 and less than 4000 are recommended, for example 1000 or 2000). For example:

Schedule some down time.

Power off the virtual machine.

Add

monitor.idleLoopSpinUS = 1000

to the configuration file of the?virtual machine?(.vmx?extension).

Note: For instructions on how to edit the .vmx file,?see?Tips for editing a .vmx file

Power on the?virtual machine.

You can set??monitor.idleLoopSpinUS = -1?to turn off the idle loop handler and allow the virtual machine to spin in its idle loop as?determined by the guest operating system. However, VMware doesn‘t recommend using?monitor.idleLoopSpinUS = -1?unless necessary, because it can cause the guest operating system to spin unnecessarily in its idle loop, resulting in unnecessary host CPU utilization possibly diverting CPU resources from other virtual machines. You can also use a one-way or two-way virtual machine.

Keywords

2231

Request a Product Feature

To request a new product feature or to provide feedback on a VMware product, please visit the?Request a Product Feature?page.

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