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title: Managing Heap and Off-heap Memory
---
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By default, <%=vars.product_name_long%> uses the JVM heap. <%=vars.product_name_long%> also offers an option to store data off heap. This section describes how to manage heap and off-heap memory to best support your application.
- **[Heap memory management](heap_management.html)**
Tips to optimize your application's performance by tuning the way <%=vars.product_name_long%> uses the JVM heap.
- **[Off-heap memory management](off_heap_management.html)**
How to configure <%=vars.product_name%> to store region values in off-heap memory, which is memory within the JVM that is not subject to Java garbage collection.
- **[Locking memory](lock_memory.html)**
How to prevent the operating system from paging out heap or off-heap memory.