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NCrunch Process \ Slow Computer
#1 Posted : Monday, February 13, 2017 5:05:06 PM(UTC)
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My system is running very slowly. In order to locate the source of the slowness I started task manager. I saw 20+ NCrunch processes:

5 - BuildHost40.x86.exe
5 - EngineHost40.x64.exe
10 - TestHost40.exe

I do have 7 copies of Visual Studio 2010 running. Most or all of these projects have NCrunch installed in them.

I think NCrunch is enabled in all of the projects. While I have hundreds of tests I believe NCrunch has run all the tests.

I'm not saying these NCrunch processes are the cause of the slow performance of my system.

But I am wondering what impact all these NCrunch processes might have on my system responsiveness.

Would those NCrunch processes be expected as normal given the number of VS projects I have open?

I'm diagnosing other items in the system for the slowness.

Thanks, Ed

#2 Posted : Monday, February 13, 2017 10:56:15 PM(UTC)
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Hi Ed,

Yes, for 7 instances of the NCrunch engine, this would be normal. Depending on how it's configured, NCrunch will keep processes around after it's created them in case they are needed again (up to a certain limit per engine).

You'll notice these processes use 0% CPU when they are inactive. This is because all they do is wait for instructions from the engine on when to perform processing. This means their CPU cost should be effectively zero. Their only cost will be in memory consumption.

You might want to look into these configuration settings if memory consumption becomes a problem for you:

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