mscorsvw.exe hogging 100% CPU
Helped a friend diagnose his slow computer, and found out that there was a process called mscorsvw.exe sucking up almost all the CPU. So did a Google search and found the following information about the process.
There are a lot of solutions proposed by many people, including killing the process, disabling the process from startup... but those are not the recommended way.
The better solution would be:
1. Run "cmd" as administrator.
2. Go to the folder C:\Windows\Microsoft.NET\Framework\v2.0.50727.
3. Execute this command
4. Wait for 20-30 minutes for the whole process to finish.
5. You can use this command to check the status anytime after that.
Suggestion: This process is installed along with SQL 2005. Remove SQL too if you are not using the program.
When mscorsvw.exe takes up resources, it 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.
There are a lot of solutions proposed by many people, including killing the process, disabling the process from startup... but those are not the recommended way.
The better solution would be:
1. Run "cmd" as administrator.
2. Go to the folder C:\Windows\Microsoft.NET\Framework\v2.0.50727.
3. Execute this command
NGEN executequeueditems
4. Wait for 20-30 minutes for the whole process to finish.
5. You can use this command to check the status anytime after that.
NGEN queue status
Suggestion: This process is installed along with SQL 2005. Remove SQL too if you are not using the program.
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