Sudden app crashes in my IIS ASP.NET app
Hello everybody,I have a problem with one app that i had time using without problems, but now i am seeing sudden app crashes sometimes.The Error log shows this: A process serving application pool...
View ArticleConcurrent GC-performance issue.
What is the best GC configuration setting for an asp.net 1.1 framework application on windows 2008r2 server?
View Articleiis worker process restart if memory exceeds threashold
is there a way to use the advanced settings of app pools to have them reset their respective w3wp process if it goes above a certain value, e.g.; 500,000KBif so, what are the specific field...
View Article"Web crawler" increases IIS Worker Process usage.
Dear Members,Here i have a question regarding the web crawling technique in Asp.net Sites. I have an asp.net application(Windows Server 2012 withIIS 8.0. ), in which i have been facing a strange...
View ArticleWarm Up in iis 7.5+8.5
Hi I Need your help to clarify a few things about Warm up Sites in 7.5 +8.5: 1.I notice that in 8.5 you can change (in the advanced properties of the Applicationpool) StartMode to AlwaysRunning. This...
View ArticleWeb Service performance issues when moving from IIS 6 to IIS 10
Hi,I have a website setup in IIS 6.0 that acts as a backend server to service web services requests from a front in web server. When I set this up 5 years ago, we had severe performance issues which...
View Article.NET Webservice - Performance testing
Hi,I am working on a .NET web service. It is deployed on IIS 7.5 (Web server is Windows 2008 R2, 64 bit machine, 8 GB RAM) and it is used to send and receive data between client application and web...
View ArticleWhat "Connection_Dropped_List_Full" in IIS Httperr log refers to?
I can see from official description on (https://support.microsoft.com/en-us/help/820729/error-logging-in-http-apis) that it refers to The list of dropped connections between clients and the server is...
View ArticleHigh CPU during stress testing/many concurrent connections
Hi everyoneI've started using an external provider to stress-test my web farm (ok it's 2 VMs, but web farm sounds nice doesn't it?). I wont mention either the stress-testing site or my own in case I...
View ArticleClik here to view.
MapRequestHandler very slow. How to fix it?
We have rolled out a classic ASP.Net WebService application with large traffic. Though our database is running quite well (<10 ms response times), most of the time spent in WebServer is in the...
View ArticleClik here to view.
IIS Is very slow in windows server
Hello all,I have Install sql server 2014 r2 and iis 8.5 on Windows server 2012 r2The problem is if there are more than 200 users at the same time IIS will stop working and will be very very slow and...
View ArticleIIS loads slow after folder copy&paste
Hi,I've a problem with application start times. I have 2 scenarios. 1. Scenario : Application start duration after iisreset command.- Run iisreset command.- Browse a text file.2. Scenario : Application...
View ArticleIIS Server high Physical memeory usage issue
Hello,I am using Windows server 2012 R2 wit IIS 8.5 .The performance issue i am reporting is on IIS ARR server where there is no application code the ARR server acts as a Proxy to the back end...
View ArticleIIS Hanging (Freezes) with too many requests
Hi,We have an IIS 10 installation on our local server. With this server we host a web panel that is very PHP heavy. Most of the time the system will work fine including large scripts that may take a...
View ArticleIIS vs VS Cassini tcprecv(s) and EF Caching
Hi,Our development environment uses VS 2010, Silverlight 5.0, .Net framework 4.0, Entity Framework 4.0, WCF Ria Services V1.0 SP2, LINQ. We're observing the following issues in our application...
View ArticleResources to become an IIS/ASP.net performance guru
Hi great site. I'm a sysadmin struggling to find resources that both describe the architecture internals (e.g. threads in iis and OS, memory allocation and garbage collection, etc etc)talk through the...
View ArticleKernel caching in IIS8.5/10
Hello All,I know the benefits and limitations of Kernel Mode caching but recently I was trying it on Windows Server 2012 (IIS 8.5) and it appeared no perf improvement or may be not working. I applied...
View ArticleCookies in WCAT
Hi All.I am just getting started with using WCAT and I seem to be having some issues with cookies. All the documentation seems to suggest these are handled for us without having to do anything special...
View ArticleWhere to find MaxConcurrentRequestsPerCPU
Hi,How to set the below parameters in IIS 8.0.MaxConcurrentRequestsPerCPU MaxConcurrentThreadsPerCPU RequestQueueLimit According to the RAP tool, currently the MaxConcurrentRequestsPerCPU is set to 12...
View ArticleHow to Set Maximum Worker Process in Core.Net
Hi,We have deployed an application in ASP.NET Core and hosted it in IIS (Version 10.0). I want to use multiple worker process for using that pool. I have set 10 as maximum worker process. But the...
View Article