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DX12 DX12 OS memory triming request ?

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In an Intel presentation about DX12 there was a mention about a "trimming request" from the OS :



ie the OS can ask an app to trim memory, and the app has to release memory/making it unresident otherwise it is suspended.

But I don't find anything related to these trimming request in the final version of DX12. And the resident/unresident concept seem to be limited to memory tiling, not to every memory allocation.


Has this been removed or do I miss Something ?


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