Re: [RFC rdma-core 2/2] verbs: Introduce non-contiguous memory registration

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On Sun, Jan 28, 2018 at 10:37:47PM +0200, Yuval Shaia wrote:

> But let's try to take it one step further, what if all my buffers are the
> same size, of even better, all are PAGE_SIZE. So in case of "composite"
> array of let's say 262144 elements i would have wasteful 262144 * 8 bytes.
> 
> This problem could be solved with a bitmap to a given range where only the
> bits that are set composed the MR.

You want this for the host on virtualization right? Like we talked
about at plumbers?

Is it really necessary to be so optimal? A list of SGLs is not good
enough?

Jason
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