Agent Metric GC Heap Used % calculation

Products

• CA Application Performance Management Agent (APM / Wily / Introscope)
• CA Application Performance Management (APM / Wily / Introscope)
• INTROSCOPE

Issue/Introduction

Would like to know how Heap Used % metric is calculated with 10.7 Agents / EM? 

Environment

Release : 10.7.0

Component : APM Agents

Cause

NA

Resolution

As per engineering:

Pre 10.7 Agents calculate GC metrics:

old way (GC Heap:Bytes In Use ÷ GC Heap:Bytes Total) * 100 

10.7 Agent calculates GC Monitor Metrics: 

- new way (GC Heap:Bytes In Use ÷ Xmx) * 100