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> Unreal Engine API Reference > Runtime > Core > GenericPlatform > FGenericPlatformMemoryConstants > OsAllocationGranularity

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OsAllocationGranularity

Some platforms have advantages if memory is allocated in chunks larger than PageSize (e.g. VirtualAlloc() seems to have 64KB granularity as of now).

Windows

MacOS

Linux

Syntax

SIZE_T OsAllocationGranularity

Remarks

Some platforms have advantages if memory is allocated in chunks larger than PageSize (e.g. VirtualAlloc() seems to have 64KB granularity as of now). This value is the minimum allocation size that the system will use behind the scenes.

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