how badly does encrypting the root file system crush my performance?
Robert P. J. Day
rpjday at crashcourse.ca
Mon Feb 25 17:59:32 UTC 2008
On Mon, 25 Feb 2008, Jeffrey Ollie wrote:
> On 2/25/08, Alan <alan at clueserver.org> wrote:
> > >
> > > the context here might make this question inappropriate, but i
> > > installed f9 alpha inside virtualbox in two different ways, with only
> > > one difference -- whether the all-encompassing root file system was
> > > encrypted or not.
> > >
> > > within virtualbox, the encrypted VM is *waaaaay* slower than the
> > > unencrypted one. should i expect the same performance difference with
> > > regular hard disk installs? just curious. i expected a difference
> > > but this is *hugely* noticeable and almost unusable.
> >
> > That sounds like an artifact of virtualbox. I am using full disk
> > encryption on F9 alpha and I am seeing little, if any, slowdown. Maybe
> > 64-bit helps.
>
> Same here, on i686.
ok, i'll do some benchmarking to try to figure out what's going on.
thanks.
rday
--
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry:
Have classroom, will lecture.
http://crashcourse.ca Waterloo, Ontario, CANADA
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