Update buffer size (#34923)

* Update buffer size

* change to 1 MB and default 17 MB

* Apply suggestions from code review

* Update aspnetcore/host-and-deploy/iis/advanced.md

Author: Rick-Anderson

aspnetcore/host-and-deploy/iis/advanced.md

@@ -5,7 +5,7 @@ description: Advanced configuration with the ASP.NET Core Module and Internet In
 monikerRange: '>= aspnetcore-5.0'
 ms.author: riande
 ms.custom: mvc
-ms.date: 10/09/2023
+ms.date: 03/07/2025
 uid: host-and-deploy/iis/advanced
 ---
 # Advanced configuration of the ASP.NET Core Module and IIS
@@ -18,6 +18,7 @@ This article covers advanced configuration options and scenarios for the ASP.NET
 
 *Only applies when using the in-process hosting model.*
 
+:::moniker range="> aspnetcore-9.0"
 Configure the managed stack size using the `stackSize` setting in bytes in hexadecimal in the `web.config` file. The default size is 1,048,576 bytes (1 MB) expressed in hexadecimal. The following example changes the stack size to 2 MB (2,097,152 bytes) in hexadecimal 0x200000:
 
 ```xml
@@ -32,6 +33,26 @@ Configure the managed stack size using the `stackSize` setting in bytes in hexad
 </aspNetCore>
 ```
 
+:::moniker-end
+
+:::moniker range="<= aspnetcore-9.0"
+
+Configure the managed stack size using the `stackSize` setting in bytes in the `web.config` file. The default size is 17,825,792 bytes (17 MB). The following example changes the stack size to 100,000 hex, (1 MB):
+
+```xml
+<aspNetCore processPath="dotnet"
+    arguments=".\MyApp.dll"
+    stdoutLogEnabled="false"
+    stdoutLogFile="\\?\%home%\LogFiles\stdout"
+    hostingModel="inprocess">
+  <handlerSettings>
+    <handlerSetting name="stackSize" value="100000" />
+  </handlerSettings>
+</aspNetCore>
+```
+
+:::moniker-end
+
 ## Disallow rotation on config
 
 The `disallowRotationOnConfigChange` setting is intended for blue/green scenarios where a change to global config should not cause all sites to recycle. When this flag is true, only changes relevant to the site itself will cause it to recycle. For example, a site recycles if its *web.config* changes or something changes that is relevant to the site's path from IIS's perspective. But a general change to *applicationHost.config* would not cause an app to recycle. The following example sets this setting to true: