compose MemorySegments

[Pedro Lamarão]

Em sex., 11 de jun. de 2021 às 00:17, leerho <leerho at gmail.com> escreveu:


> This is an interesting problem and a difficult one to do efficiently
> without copies or additional allocations. I think the OS does similar
> tricks when it maps virtual memory addresses into CPU caches or main
> memory.  To the user's program it appears as a contiguous memory space but
> in reality could be broken into many separate physical chunks.  I'm sure
> there are some ways one could do this in C++, but probably not as efficient
> as the OS could do it.
>

Virtual memory is "accelerated" by the hardware's MMU;
that would be a very hard performance target to replicate in userspace.

-- 
Pedro Lamarão
https://www.prodist.com.br
Securing Critical Systems
Tel: +55 11 4380-6585

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