Merge pull request #10379 from ryanberg-aquent/CI-8686

AB#8686: AI optimization: "Worker Process requested recycle due to 'Percent Memory' limit" in App Service

Author: ryanberg-aquent

support/azure/app-service/toc.yml

@@ -17,6 +17,8 @@ items:
           href: ./capture-memory-dumps-app-service.md
         - name: Availability, performance, and application FAQs
           href: web-apps-performance-faqs.md
+        - name: Worker Process requested recycle due to Percent Memory limit message 
+          href: worker-process-percent-memory-limit-message.md
         - name: Troubleshoot instance-related issues
           href: troubleshoot-instance-related-issues-on-azure-app-service.md
         - name: Troubleshoot temporary storage

support/azure/app-service/worker-process-percent-memory-limit-message.md

@@ -0,0 +1,35 @@
+---
+title: Worker Process requested recycle due to Percent Memory limit message
+description: This article provides guidance on addressing the "Worker Process requested recycle due to 'Percent Memory' limit" message in Azure App Service. 
+author: JarrettRenshaw
+manager: dcscontentpm
+ms.topic: troubleshooting-general
+ms.date: 12/16/2025
+ms.author: jarrettr
+ms.reviewer: v-ryanberg
+ms.service: azure-app-service
+ms.custom: sap:Availability, Performance, and Application Issues
+---
+# "Worker Process requested recycle due to 'Percent Memory' limit" message
+
+This article provides guidance on addressing the "Worker Process requested recycle due to 'Percent Memory' limit" message in Azure App Service. 
+
+## Symptom
+
+You see the message "Worker Process requested recycle due to 'Percent Memory' limit."
+
+## Cause
+
+The maximum available amount of memory for a 32-bit process (even on a 64-bit operating system) is 2 GB. By default, the worker process is set to 32-bit in App Service (for compatibility with legacy web applications).
+
+## Resolution
+
+Consider switching to 64-bit processes so you can take advantage of the additional memory available in your Web Worker role. This action triggers a web app restart, so schedule accordingly.
+
+Also note that a 64-bit environment requires a Basic or Standard service plan. Free and Shared plans always run in a 32-bit environment.
+
+For more information, see [Configure web apps in App Service](/azure/app-service/configure-common).
+
+[!INCLUDE [azure-help-support](~/includes/azure-help-support.md)] 
+
+[!INCLUDE [Third-party contact disclaimer](~/includes/third-party-contact-disclaimer.md)]