ASP.NET Memory - How much are you caching? + an example of .foreach

re: ASP.NET Memory - How much are you caching? + an example of .foreach

Tess1 — Wed, 04 Jun 2008 16:58:56 GMT

Not sure I follow,

What is at address 22d2f00 and what is at offset 4c?

I.e. what would you get if you did !do 22d2f00

re: ASP.NET Memory - How much are you caching? + an example of .foreach

shivakrishna.k — Wed, 04 Jun 2008 16:48:55 GMT

Hi Tess,

I am very much new to debugging and learning how to debug only by reading your blog. I will greatly apreciate your help. I got the memory dump of w3wp using ADplus. But when I type "!dumpobj poi(22d2f00+4c)" to get the string at the address windbg is giving an error saying invalid parameter. I copied sos.dll to debuggers folder from framework folder. I am using latest version(6.9.0003.113) of windbg.I googled for the solution for 2 days but no luck. Please help me in solving this problem. Thanks in advance.

Shiva

How I lost my WinDbg virginity

LavaBlast Software Blog — Thu, 13 Mar 2008 17:31:17 GMT

How I lost my WinDbg virginity

ASP.NET Memory Investigation

If broken it is, fix it you should — Mon, 13 Aug 2007 17:54:24 GMT

This is a bit of a continuation of ASP.NET Memory Issue: High memory usage in a 64bit w3wp.exe process

re: ASP.NET Memory - How much are you caching? + an example of .foreach

Tess1 — Fri, 09 Mar 2007 11:23:56 GMT

Hi Jason,

There isn't a !dumpaspnetcache command yet in 2.0 so the only way you can do it is through manually dumping out hte contents of System.Web.Caching.Cache but a few common tasks so you dont have to run though the whole ordeal of dumping it out, would be to do the following

1. Find the System.Web.Caching.Cache MT in !dumpheap -stat

2. !dumpheap -mt on that MT

3. !objsize on the objects so that you can see how much you are saving in cache

For session state, find the MT for the InProcSessionState objects and run

.foreach (Session {!dumpheap -mt <MT> -short}){!objsize ${Session}}

Which will give you the size of the individual Sessions and then from there you can drill down into the particular session object that is causing you grief.

Hope this helps,

Tess

re: ASP.NET Memory - How much are you caching? + an example of .foreach

Jason Brown — Fri, 09 Mar 2007 02:52:56 GMT

In the .Net from 2.0 there is no !dumpaspnetcache command. Do you know if its called something different now, or if there is a way to do something similar?

ASP.Net Quick Tips - Caching

Ancora Imparo — Wed, 07 Mar 2007 16:02:36 GMT

This is part four in the ASP.Net tips series . In particular, this is a follow-up to, " ASP.Net Quick

re: ASP.NET Memory - How much are you caching? + an example of .foreach

Tess1 — Wed, 22 Mar 2006 09:31:58 GMT

Hi Steve,

In this particular sample there was only one application so only one cache, if there would have been more than one cache all objects from all caches would have been listed with the !dumpaspnetcache -stat command

re: ASP.NET Memory - How much are you caching? + an example of .foreach

Steve — Wed, 22 Mar 2006 02:53:12 GMT

I'm a little confused by the demo in your post. You show us with the .foreach command that there is a cache object for each runtime but then when you demo the !dumpaspnetcache -stat it only list one group of objects. Are those all objects in all cache objects or only the objects in the first cache?

re: ASP.NET Memory - How much are you caching? + an example of .foreach

Tess1 — Mon, 20 Feb 2006 10:16:29 GMT

Thank you very much Jonno, really appreciate the help...

That seemed to do the trick:) I've now been able to change it to 8pt which is about as low as i can go and still have it readable.

You learn something new every day...