Ram Class Persistence: A suballocator for pre-defined heap spaces#23356
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lzhou2025 wants to merge 1 commit intoeclipse-openj9:masterfrom
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Ram Class Persistence: A suballocator for pre-defined heap spaces#23356lzhou2025 wants to merge 1 commit intoeclipse-openj9:masterfrom
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The suballocator is based on dlmalloc to manage RCP pre-defined heap spaces. The heap space is partitioned into multiple subspaces and each subspace is associated with a mspace of dlmalloc, which is protected by a lock. When multiple threads allocate or free memory at the same time, it will be handled across multiple subspaces and a dedicated subspace is assigned to each thread to reduce lock contention.
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The suballocator is based on dlmalloc to manage RCP pre-defined heap spaces. The heap space is partitioned into multiple subspaces and each subspace is associated with a mspace of dlmalloc, which is protected by a lock. When multiple threads allocate or free memory at the same time, it will be handled across multiple subspaces and a dedicated subspace is assigned to each thread to reduce lock contention.