Introduction
The Large Object Heap (LOH) is a critical component of modern memory management systems. It's designed to handle large objects, like images, videos, and large data files, efficiently, reducing the overhead associated with frequent allocations and deallocations.
Unlike the smaller, faster heap, LOH prioritizes data integrity and avoids the performance degradation that can occur with frequent fragmentation.
Key Characteristics:
- Memory Allocation: Large objects are allocated in larger chunks, reducing the number of memory allocations and deallocations.
- Memory Fragmentation: Minimizes fragmentation by keeping objects in contiguous memory regions.
- Data Integrity: Provides better data integrity by preventing objects from being fragmented and avoiding unnecessary swapping.
- Data Size Consistency: Ensures that objects remain consistent in size across the system.
While powerful, the LOH has limitations. It relies on a small, fast heap for smaller objects.
Used extensively in web browsers to manage large assets, and in other applications.