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How To Reduce W3wp.exe Cpu Usage


It gives you an insight into the way your application works. When I do that, I find the following code. Click Next. I've been receiving a lot of cool feedback about the blog recently (I'm not sure why out of sudden a lot of people started being ineterested on the posts) and that Source

is there any way to find the exact source code or to trace in details any asp request? I can tell from this analysis that the default.aspx page in the FastApp application is running. Once you’ve selected all counters, press Delete on your keyboard to remove them. Particular attention should be paid to looking at the requests that are coming in:Are they repetitive in excess?Do they contain error status codes? (403, 500, etc)Troubleshooting HTTP 400 Errors in IIS

W3wp.exe High Cpu Iis

share|improve this answer edited Jan 13 '10 at 10:04 answered Jan 13 '10 at 9:59 RickNZ 14.9k13356 5 I'll just add for the record what ended up taking us to Select Activate the Rule Now and click Finish. share|improve this answer answered Aug 30 '09 at 13:41 Larry Dallas add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign You can have it kill (and automatically restart) your process anytime you reach a CPU threshold for a certain amount of time.

Track down to see exactly where. –Peter Gfader Jan 15 '10 at 10:03 add a comment| up vote 4 down vote ProcessExplorer is an excellent tool for troubleshooting. High CPU usage can be caused by anything, be it code, update, buggy code in IIS/Windows/driver etc. –Tomas Voracek Apr 21 at 9:33 add a comment| up vote 42 down vote TIP You can create dumps of multiple application pools by adding multiple dump targets using the same technique used in steps 13-15. W3wp.exe High Cpu Iis 6 TIP You can create dumps of multiple application pools by adding multiple dump targets using the same technique used in steps 13-15.

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed what I don't know is why it only happens in IIS 7 windows 10 and not any other IIS and server ( I am running this same code with no change Click Add. Use the down arrow on your keyboard to move down through the list of processes until you find the process that shows the most CPU usage.

Everyone else seemed normal right around 500-700 hits. Iis Cpu Usage Spikes To 100 The final dump will be a dump with full memory, and that dumps will be much larger. profiling w3wp red-gate-ants share|improve this question edited Jan 13 '10 at 11:24 asked Jan 12 '10 at 21:41 Herb Caudill 21.2k3299157 Are you somehow logging exceptions inside your Figure 2 - Creating a data collector set.

W3wp.exe High Cpu Usage Windows 2008 R2

Data Analysis After the high CPU event, you will have two sets of data to review; the Perfmon data collector set and the memory dumps. We're just killing those processes. W3wp.exe High Cpu Iis Could it be a DDOS attack? Iis Worker Process High Cpu Server 2012 i maked a userdump through debug diag, but it doesn't help me, because there wasn't any reference to the asp script that launches the threads.

Join them; it only takes a minute: Sign up How prevent CPU usage 100% because of worker process in iis up vote 18 down vote favorite 8 My CPU usage is Figure 3 - Adding perf triggers in DebugDiag. Figure 6 - A DebugDiag analysis report. Sorry for the long post.  I appreciate all of the help that has been given so far. -Chris 0 Jalapeno OP christh0mas Apr 4, 2011 at 7:33 UTC What Is W3wp.exe Process

Click Add Data Files. All rights reserved. htmlTable += "

"; for (int x = 0; x < 5000; x++) { htmlTable += "" + ""; htmlTable += "
" + "Cell A" + x.ToString() + "" + "Cell B" Enter a name for your rule if you wish and make note of the location where the dumps will be saved.

It was recommended I rebuild my default website on Exchange as shown here: I'm a little hesitant to do that especially considering the fact that, like you, I feel this Iis Worker Process High Cpu Exchange 2013 Figure 4 - Perfmon displaying the High CPU data. To create a data collector set for troubleshooting high CPU, follow these steps.

Don't know how large your environment is, but maybe you can start a similar test as Chris did to help filter who has the unfriendly phone.

asked 3 years ago viewed 71483 times active 1 month ago Get the weekly newsletter! Click the Add button. Select the Performance Analyzers. W3wp.exe High Cpu Usage Windows 2003 You can always unassembly(u)from the intruction pointer to try digging a little bit more and obtain some additional information.

It is called IISPeek. up vote 48 down vote favorite 20 An ASP.NET web app running on IIS6 periodically shoots the CPU up to 100%. Figure 1 shows this box checked and shows the w3wp.exe process (the process that hosts an IIS application pool) consuming a high level of CPU. add a comment| 5 Answers 5 active oldest votes up vote 6 down vote Attach WinDbg + sos and run !runaway.

Select ASP.NET from the list of counters and click Add. Found this link while searching for similar issue. It can also be extremely helpful in getting a “big picture” view of how your application performs. The easiest way to isolate which process was using the highest level of CPU is to enable the highlight feature of Perfmon.

Table of ContentsInstallation IssuesArticleTroubleshooting IIS 7.x Installation IssuesSecurity IssuesArticleTroubleshooting SSL related issues (Server Certificate)ArticleTroubleshooting Forms AuthenticationASP.NET IssuesArticleTroubleshooting Invalid viewstate issuesDiagnosing HTTP ErrorsArticleHow to Use HTTP Detailed Errors in IIS 7.0ArticleTroubleshooting HTTP Reply bobkate 1 Post Re: w3wp.exe high cpu usage Aug 04, 2008 09:06 PM|bobkate|LINK Thank you ! However, if you consistently see CPU remain at a high level (in the area of 80% or greater) for prolonged periods, the performance of your application will suffer. Figure 7 shows what those threads are doing in my application.

The only real measure is to check the CPU usage against the amount of traffic being handled by the application. Use the down arrow on your keyboard to move down through the list of processes until you find the process that shows the most CPU usage. Not a member? A Performance Monitor data collector set.

You will now have a display that shows a graph of processor time used by each process on the computer during the time that the data collector set was running. Enter 20 for the number of seconds. (You can adjust this value if needed, but be careful not to specify a small number of seconds in order to prevent false triggers.) If that happened press Ctrl + Q, go to source tab and move the Time WIndow slide in order to get only the period of high utilization CPU, then go back In the combo list, select or type the remote computer name (the one where the problem happensand which you're going to monitor) Select the following objects::counters: Processor(*)\*Process(*)\*Threads(*)\* Start monitoring and wait