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Memory Windows in HP-UX 11.0. White Paper
page 1
Memory Windows
White Paper
1. Objectives
HP-UX release 11.0 is the first to support the new HP V-class machine. Targeted for high end OLTP, decision
support, server consolidation and ERP, the V-class can support up to 16 gigabytes of physical memory.
The current 32-bit virtual address space of HP-UX is limiting applications from taking full advantage of
systems with a large amount of physical memory.
Not all of HP's software providers have ported their applications to 64-bits, nor is it necessary in all cases.
But HP-UX has limitations for shared resources on 32-bit applications. All applications in the system are
limited to a total of 1.75 gigabytes of global space(shared memory), 2.75 gigabytes if compiled, linked as
EXEC_MAGIC and chatr'd as SHMEM_MAGIC. In a system with 16 gigabytes of physical memory, only
1.75 can be used for shared resources such as shared memory.
To address this limitation a functional change has......

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Approximate Pages: 20 (250 words per double-spaced page)

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