Re: [RFC] VM: I have a dream...

[Al Boldi]

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

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/