Jamie Lokier wrote:
> If I understand your scheme, you're suggesting the kernel accesses
> disks, filesystems, etc. by simply reading and writing somewhere in
> the 64-bit address space.
>
> At some level, that will involve page faults to move data between RAM and
> disk.
>
> Those page faults are relatively slow - governed by the CPU's page
> fault mechanism. Probably slower than what the kernel does now:
> testing flags and indirecting through "struct page *".
Is there a way to benchmark this difference?
Thanks!
--
Al
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