IIS Worker threads per core
Hi Team, Normally as per hyper-threading only 2 threads can be processed per core at a time. How one is able to configure more than 2 threads per core on IIS config see link...
View ArticleService Unavailable website even application pool is running well
Good day everyone.Is there anyone could help us to figure out these concerns? We have optimized the IIS settings including application pools to our server.Under default websites, we do have number of...
View ArticleIIS 10 Performance issue
We see performance issue with CPU usage always around 90% , thread dump shows lot of thread waiting to enter .NET Lock.Worker thread configuration is 50<processModel autoConfig="true"...
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IIS suddenly jumps to 100% CPU loading
I have an IIS 8.5 running in 2012R2 VM on Azure, hosting multiple websites with different IIS Application Pools. Occasionally the VM CPU loading will suddenly jump up to 100% which is held by the...
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Slow performance of classic ASP pages with Windows 2016 IIS10
We are having one ASP.NET Website previously hosted on Windows 2008 Server with IIS 7.0. Few days back we have decommissioned that server and hosted the application in Windows 2016 Server with IIS...
View ArticleHigh CPU on all WordPress sites PHP7.4.5 IIS 10
IIS10PHP 7.4.5MySQL 8.0.1.92.6Hz1 Socket2 processorsWindows Server 2019Hi,On all my WordPress sites when I refresh the page 1 php-cgi.exe process is taking up half my CPU.No errors in the php log file...
View ArticleWorker Process Crashed
Large number of awaiting requests on audit application pool which led to crash in pool as you will see many errors in the attached HTTP error log file.Connection Abandoned by ReqQueue on Audit App pool...
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ResolveRequestCache is taking much time although i don't need it
I have a C# MVC application hosted in IIS performance testing environment with only one action method in APIController. Clients call this single method and depending upon the parameters different small...
View ArticleIIS Worker Process (w3wp.exe) high memory
Hi Everyone!On Windows Server 2012 R2 Datacenter. I running ASP.Net Application.Performance SVR: Memory: 32GbI saw on Task Manager: IIS Worker Process(w3wp.exe) for My Application taking full Memory...
View ArticleC# loading an unmanaged DLL: big performance difference between console...
I have a webapp written in C#, based on ASP.NET. It loads (with LoadLibraryEx) an unmanaged DLL written with C++Builder.As I have performance issues I made some tests and comparisons, running always...
View ArticleIIS 10 CPU throttling not working on WS 2019
We are running few websites on WS 2019 IIS 10. On one of these websites we applied CPU Limit: 35 But when I recycle app pool where this limitation is applied and try to access to site, CPU is exceeding...
View ArticleIIS won't serve static files larger than 10KB
Hi,I'm facing a strange issue with IIS on windows 10.No static files larger than 10KB are served.Even if I go and try to open the http://localhost/ to see the iisstart.htm page, the iisstart.png is not...
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Viewing maximum number of IIS connections in perfmon
In IIS-10, I have set the `maximum concurrent connections` to 50, however, in the performance counters, I don't see that 50 for the related counters. Which performance counter is related to this limit...
View Articleconfusion on tuning
We are tuning our IIS instances as we are running into CPU contention. We are using the following article as our guide:https://docs.microsoft.com/en-us/troubleshoot/aspnet/performance-call-web-service...
View ArticleNUMA and threading
Hello,We are exploring moving our IIS servers to NUMA and setting workerprocesses to 0. However, our legacy machine.config has the following custom configuration settings. How should we tune these...
View Article.NET CLR LocksAndThreads\Queue Length / sec and locks
Hello,What kind of locks within code would cause this counter to be affected? For example, would SQL locks contribute to this?Thanks
View ArticleIIS Application Pool Exceeding Memory Limit
I recently capped the maximum private memory in an IIS application pool to keep it from hogging system resources. Then the other day I caught the IIS worker process using far more ram than that. Why...
View ArticleIIS 10 Windows server 2019 slow ftp high latency
Hello I have dedicated server with 1gbps of upload speed but I cant get over 10mpbs dowload speed from my client pc from ftp with iis 10. I have high letancy over 100ms. I know the problem is with...
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IIS https requests are 4-5 times slower than http, lsass.exe is consuming 40%...
We have an ASP.NET application running on IIS on Windows Server 2016, hosted on a D48s Azure virtual machine (48 cores).Most of the time, the web app is processing requests from regular users at a pace...
View ArticlePerformance very slown in pages C#
I have an application running in production developed in ASP.NET 4.6, the application to be published or at any time it takes approximately 1 min to load each page, I have already tested it on other...
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