I have a very unusual problem with W3WP process (IIS Worker Process). It is not taking enough memory from my CPU to run faster. It is impacting my development work as it is taking way to long to pull up a local website. When I start the website from my localhost, W3WP start at roughly 50MB and takes nearly 10 min to spike upto 100MB.
Is there a way to make W3WP run fatser?
I am using a 64bit 3.4GHZ Quad Core i5 CPU with 8GB RAM. OS Windows 7 Enterprise Edition.
you can use .NET Profiler too see the slow methods.
Also you can change resource limits ( CPU , Memory , ... ) in advanced application pool settings.
I went to IIS settings and changed the 'Worker Process'/'Change .Net Framework Version' from 2.XX to 4.XX. Also I have a dedicated app pool for my application and stopped all other applications. These changes made things a lot better that what it was.
Related
I deployed my application in IIS server. It is using by all users where from all regions. it is running by 24X7.The memory of app pool accumulated. It is taking 20gb of the memory. Can anyone please suggest me why It is happening? and how it can be solved?
Memory Consumption Preview
Seems like you might have a bug in your application. Anyway you can configure the app pool to recycle after reaching a defined limit here.
I'm hosting 7 websites on a single production server (virtual) at 2.53 Ghz (2 CPU) and 8GB of RAM on WIN SERVER 2008 R2 Enterprise 64 Bit.
Web server is IIS 7 and all of the websites are with .NET Framework 4.0 application pool.
My current memory usage is about 4.16 GB out of 8GB and w3wp.exe is the most process which consuming most of the memory usage (about 1.6 GB at this time) followed by sqlservr.exe with (1.5 GB) usage.
What I would like to do is to know which website out of 7 is consuming the most memory so that I could have a look.
I've tried Process Explorer and Resource monitor but it could only show how much rem taken by w3wp.exe but not individual website's usage.
Is there a way where I could pin point the memory hogger?
You could do a memory dump using Microsoft's Debug Diag tool.
Basic process is:
Launch DebugDiag
Cancel Wizard
Click "Processes" tab
Select w3wp
Right-click and select "Create full dump"
Snigger quietly to yourself because you said "dump"
Once dump is complete (snigger again), click "Advanced Analysis" tab
Use the 2 Memory Pressure Analyser scripts to see if you can see what objects are using a lot of memory.
I would advise doing this in combination with Uri May's answer, as otherwise you will likely waste a lot of time.
You can configure each web site to use different app pool, that way you'll have a w3wp.exe process for every web site of the 7 websites you host. After that you can use the tool in the following this link to find out which of the websites is causing the leak by tracing the PID of the w3wp.exe with biggest memory consumption.
In windows task manager you can see which app pool is running each w3wp.exe simply by showing the "user" column. This is because each app pool typically runs with its own user. They made it a bit harder to see this in Windows 2012 server - you need to click on "details" tab first.
I used to have my application in iis 6 and the process w3wp consume max for 4Gb now am using the new version this amount has increased 2-3GB.
any recommended optimization configuration.?
This articles might help you find a suitable solution:
w3wp.exe using too much memory and resources
Identifying Worker Process (w3wp.exe) – IIS 6.0 and IIS 7.0 for Debugging ASP.NET Application
I have a few asp.net applications running on my IIS6 server. And after I published a new one, it froze after a few hours. When i restart the app-pool it works again.
I see after I restart the app-pool that the memory footprint of w3wp.exe increases steadily by about 4-500kb each second, and it doesn't seem to stop.
How can I find out what is causing the memory leak?
Tess's blog is the place for learning how to track these down.
.NET Debugging Demos
We are struggling to find out what could be the ASP.NET application performance decrease when we pass from our staging server to our production server and we would like to hear from you to help us find the bottleneck.
Our staging server is a Intel Core 2 Quad CPU Q8200 (2.33 GHz) with 4GB of RAM, Windows Server 2003 R2 SP2 x64 Edition. Databases are hosted on Sql Server 2008 Express Edition. Everything seems to work smoothly. Page change is almost immediate ad page load time (for example switching pages in a grid) is ok.
Our production server is a VIRTUAL double Intel Xeon 3.00 GHz with 2GB of RAM, Windows Server 2008 Web Edition SP2 x86 Edition. Database are hosted on Sql Server 2008 Web Edition.
Our application is a .NET 3.5 (migrating to .NET 4 in these days) using classical best practices (masterpages, CSS, AJAX, paging for data, client cache for static resources, gzip compression on IIS for static and dynamic resources, server side cache for data that doesn't change frequently...).
I really can't understand what can cause the application to run so differently between the two scenarios. What could that be? The missing RAM? The load on the production server? The network limit?
What can I do to narrow bottlenecks' research?
You could briefly enable tracing on your production server (don't forget to turn it back off) and see what stages of your page loading are taking so long).
If you can easily add 2 GB more of RAM to the virtual server, try that, it's easy and might matter. Check your RAM usage in task manager and see how much you're using.
Are these servers hosted at the same place or might there be network latency differences?
On the server, run perfmon.msc and watch the counters, what's maxing out?