DRAFT: I95-60089 KB IDP high memory

kb/2025-01-31-I95-60088.md

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+---
+title: High Memory Usage for IDP on SSR-130
+date: 2025-01-31
+tags: ['6.3.3-r2']
+hide_table_of_contents: false
+---
+
+For non-multicore platforms, the default IDP engine behavior has changed to fully utilize its maximum memory threshold on startup, resulting in a significant overall system memory increase upon upgrading to version 6.3.3-r2.
+
+<!-- truncate -->
+
+**Issue ID:** I95-60089
+
+**Last Updated:** 2025-01-31
+
+**Introduced in SSR Version:** 6.3.3-r2
+
+### Problem
+When IDP is enabled on devices that do not utilize hugepages (SSR-120, SSR-130, SSR-1200), the `srxpfe` application will allocate memory from the system OS on startup. It is known that on the SSR-130, this can result in high memory alarms and potentially degrade the performance of some control processes.
+
+The IDP engine on SSR-130 will use an additional 2GB on startup (increasing from 1GB to 3GB) and will retain this usage until disabled.
+
+### Recommendation
+It is recommended to avoid upgrading to version 6.3.3-r2 if you are using IDP and the device is an SSR-130 until the issue can be resolved.
+
+### Release Notes
+N/A
+
+### Severity
+<details>
+The potential impact of a software defect if encountered. Severity levels are:
+* Critical: Could severely affect service, capacity/traffic, and maintenance capabilities. May have a prolonged impact to the entire system.
+* Major: Could seriously affect system operation, maintenance, administration and related tasks.
+* Minor: Would not significantly impair the functioning or affect service.
+</details>
+Critical
+
+### Status
+In Progress
+
+### Resolved In
+N/A
+
+### Product
+SSR
+
+### Functional Area
+System Health