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XEN and es/implementation

Note 941735 - SAP memory management for 64-bit Linux systems states, that using the std implementation can be used on Linux x86-64 and I heard rumours, that using that memory allocation method is 10 - 15 % faster than mmap.

I remember I read some note, that on a Xen PV instance "map" should be used, that note seems to be vanished (or that sentence)...

Is in that area anything recommended? Is memory disclaiming supported for mmap also?

Markus

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    Posted on Jun 13, 2008 at 12:25 PM

    [Note 962334|https://service.sap.com/sap/support/notes/962334] seems to be the central note for Xen but doesn't mention anything regarding es/implementation. Not sure if you've seen it ?

    Nelis

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