[GRLUG] Solid State Drives

Michael Mol mikemol at gmail.com
Tue Dec 2 11:00:32 EST 2008


On Tue, Dec 2, 2008 at 10:28 AM, Tim Schmidt <timschmidt at gmail.com> wrote:
> On Mon, Dec 1, 2008 at 3:32 PM, Collin Kidder <adderd at kkmfg.com> wrote:
>> Swap might be a bit faster than file system access but can't be faster
>> than the maximum throughput of the drive(s).
>
> Yes, it can.  It's called compression.  Often used in situations where
> one might want to shove a large amount of data over a low bandwidth
> link.  Mainline Linux kernels don't compress swap (yet), but it's
> certainly a feature I'd expect to see sometime.

Oi...Disregarding CPU consumption, that would massively complicate the
swap system.  Your memory pages are no longer a fixed size on disk,
and may even grow beyond their initial size with nasty enough data.
So you'd have to use more disk space to guarantee holding the same
volume of original data.


-- 
:wq


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