Mscorsvw.exe

最新推荐文章于 2025-12-19 13:24:40 发布

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#optimization #compilation #manager #.net #up #go

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mscorsvw.exe是.NET框架的一部分，用于在后台预编译.NET组件。安装.NET运行时后，该进程会在5到10分钟内以高优先级处理关键组件，并在计算机空闲时处理较低优先级的任务。此过程虽然可能导致CPU使用率达到100%，但其进程优先级较低，不会影响其他应用程序。预编译完成后，.NET组件能够在不同进程中共享内存页面，从而加速启动时间。

What is mscorsvw.exe and why is it eating up my CPU? What is this new CLR Optimization Service?

Short version:

mscorsvw.exe is precompiling .NET assemblies in the background. Once it's done, it will go away. Typically, after you install the .NET Redist, it will be done with the high priority assemblies in 5 to 10 minutes and then will wait until your computer is idle to process the low priority assemblies. Once it does that it will shutdown and you won't see mscorsvw.exe. One important thing is that while you may see 100% CPU usage, the compilation happens in a process with low priority, so it tries not to steal the CPU for other stuff you are doing. Once everything is compiled, assemblies will now be able to share pages across different processes and warm start up will be typically much faster, so we're not throwing away your cycles.

If you are really want to get rid of mscorsvw.exe from your task manager, just do:

ngen.exe executequeueditems

which will drain all the queued up work.