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[ram] Section

This section controls the virtual machine memory environment.  The following list describes these options:

  • allocator – Virtual machine memory allocator.
  • size-- Virtual machine memory size.

allocator 

Virtual machine memory allocator.

Syntax

allocator = memory-allocator

Description

The allocator option is used to indicate to the virtual machine which memory allocation method the host system will use to allocate the virtual memory environment.  The memory-allocator value can be set according to the able below:

Virtual Machine Memory Allocators
AllocatorDescription
hugetblAll virtual machine RAM is allocate from hugetlbfs.
mallocAll virtual machine RAM is allocated from system heap.
mmapAll virtual machine RAM is allocated from file-backed virtual memory via mmap.

size 

Virtual machine memory size.

Syntax

size = memory-size

Description

This option specifies the amount of host memory that the virtual machine should make available to the guest.  It is specified in megabytes (MB).  The table below describes the allocation rules for each virtual machine model.

Virtual Machine Allocation Increments and Maximum Sizes
Virtual Machine ModelMemory Allocation Rules
Sun SPARCstion 2064MB, 128MB, 256MB and 512MB.
Sun Enterprise 4501 - 32 GB in 1 GB increments.



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