windows server 2016 is too laggy CPU in the new installation environment, which causes the machine to be stuck. Mscorsvw.exe is the mscorsvw.exe

.

Go to the service and find out that there are two services NGEN, among which 2.0 is disabled, which is estimated to be the impact of 4.0

After shutting down NGEN 4.0, the CPU comes down

Microsoft .NET Framework NGEN v4.0.30319_ X86

.NET Runtime Optimization Service v2.0.50727_ X86

The specific analysis is as follows:

MSDN English description

http://blogs.msdn.com/davidnotario/archive/2005/04/27/412838.aspx

What is mscorsvw.exe and why does it occupy the CPU of my computer?What is “new CLR optimization service”?Mscorsvw.exe is a precompiled. Net assemblies in the background. Once it’s done, it stops. Generally speaking, when you install the. Net distributor, it will take 5 to 10 minutes to precompile those high priority assemblies, and then wait until your computer is idle to deal with those low priority assemblies. Once it’s all processed, it will terminate and you won’t see mscorsvw.exe again. The important point is that when you see that the CPU is 100% occupied, this happens when it is in a low priority process, so it tries not to let other processes you are running preempt the CPU. Once all assemblies have been compiled, assemblies will be able to share memory pages across processes. Generally speaking, the hot start will be much faster at this time, so we will not discard your other processes. If you really want to remove mscorsvw.exe from your task manager, you can do this:

1. Close by command:

Ngen.exe executequeueditems, which enables all subsequent queued processes to start working

2. You can close this program by closing the service

Microsoft. Net runtime optimization service is a process of. Net runtime optimization service. Just turn off this service

mscorsvw.exe

Process file: mscorsvw.exe

Process name,. Net runtime optimization service

This program is a non essential process, but should not be terminated unless prospected to be causing problems

Process analysis:

Microsoft virtulstdio 2005 framework precompile tool

Process location: unknown

Purpose: background precompile. Net assemblies

Author: Microsoft

Of: Microsoft. Net framework

Safety level (0-5): 0 (n/a no danger, 5 most dangerous)

Spyware: no

Advertising software: no

Virus: no

Trojan: no

System process: Yes

Application: no

Background program: Yes

Use access: no

Internet access: no

In addition, information about ngen.exe can be found on the official website:

. net framework tools

Native image generator (NGEN. Exe)

Update: November 2007

Native image generator (NGEN. Exe) is a tool to improve the performance of managed applications. Ngen.exe creates native images (files that contain compiled processor specific machine code) and installs them into the native image cache on the local computer. The runtime can use native images from the cache instead of compiling the original assembly with a just in time (JIT) compiler

In. Net Framework version 2.0, ngen.exe has changed a lot

When you install an assembly, its dependencies are also installed, simplifying the syntax of ngen.exe

You can now share native images between application domains

You can use the new operation update to recreate the invalid image

Operations can be deferred by services on the computer that use idle time to generate and install images

Some of the factors that cause invalid images are eliminated

For additional information about how to use ngen.exe and native image services, see native image services

this paragraph is reproduced from: https://blog.csdn.net/superhoy/article/details/6322210

Process file: mscorsvw. Exe
process name:. Net runtime optimization service

Information searched online

Net runtime optimization service uses mscorsvw.exe, which is a collection of. Net assemblies precompiled in the background. Once it’s done, it stops. Generally speaking, when you install the. Net distributor, it will take 5 to 10 minutes to precompile those high priority assemblies, and then wait until your computer is idle to deal with those low priority assemblies. Once it’s all processed, it will terminate and you won’t see mscorsvw.exe again
ngen.exe executequeueditems enables all processes waiting in the queue to start working
the reason why mscorsvw.exe takes up a lot of CPU
when you see that the process of mscorsvw.exe takes up 100% of CPU, it is in a low priority process, so it tries not to let other processes you are running preempt CPU. Once all assemblies have been compiled, assemblies will be able to share memory pages across processes. Generally speaking, the hot start will be much faster at this time, so we will not discard your other processes

Solution:

CMD command:

① cd C:\Windows\Microsoft.NET\Framework\v4.0.30319

②ngen.exe executequeueditems

③ Restart the computer after execution

When you finish and restart your computer/server, your CPU load should feel better