CODEWITHSUNDEEP
c#asp.netiiscpu
Yury Kerbitskov
Yury Kerbitskov

Reputation: 663

IIS high process load

I have an IIS server version 8.5. I have web site and a number of web-services hosted on this web site. A number of windows services and desktop apps are working this with IIS instance. And everything is ok for some time. But some time later IIS begin to use 100% of cpu resources. I can suppose that my code is the probem, but firstly i'm doing next steps:

  1. I'm switching off all windows services and desktop apps.
  2. Switching off w3wp process from processes.
  3. Restrating several times app pool, iis and site.

But after i'm startig again iis, pool and site and nothing else (nothing is using iis) i can see that iis worker process using about 20% of cpu resources. And the situation above can be repeated again after some time. It means that the problem can't be in the my code.

What can be the problem of the iis high-load then it just started and then it uses 100% of cpu?

Upvotes: 0

Views: 5261

Answers (1)

Henry
Henry

Reputation: 3013

It happens, we've all struggled with high CPU in a worker process before. It in almost all cases it is the code.

If you're threading (That's probably your answer right their)

But here's what you need to do.

Right click on the process consuming the CPU and click "Dump Process", this will create a debug file.

Then use debug diagnostic tool from Microsoft and open the file, it has a wealth of information in it. It's your starting point. Unless you're willing to share the code.

Upvotes: 1

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