[Catching up on a d-u backlog:] On Sun, 16 Aug 2009 12:03:25 +0300 Γιώργος Πάλλας <gp...@ccf.auth.gr> wrote:
> Teemu Likonen wrote: > > On 2009-08-12 09:38 (+0300), Teemu Likonen wrote: > > > > > >> Do you (or anybody) have numbers or educated guesses on how much it > >> slows down the disk operation or how it will affect CPU load? > >> > > > > I found such an article and it seems to indicate that LUKS system has no > > much performance penalty on disk IO. > > > > http://www.tomshardware.com/reviews/locking-linux-creating-a-cryptobook,1303.html > > > > > > > > This has been discussed numerous times on this list. Most people using > it (me also) report that there is no observed performance impact... I recently reinstalled Debian Sid on my laptop, both to remove cruft and to move to full disk encryption (similar to Manoj's setup - everything except /boot on lv's on top of a luks encrypted partition). The system on the whole seems leaner and snappier, but one major performance hit that I seem to notice is that suspending to disk is *much* slower. I don't have actual numbers or proper benchmarks, but I have the impression that it's something like half as fast, or even slower. I don't know for sure that this is related to the encryption; I suppose that there may have been some other critical change, or it may even be subjective, and all or partly in my head ... Celejar -- mailmin.sourceforge.net - remote access via secure (OpenPGP) email ssuds.sourceforge.net - A Simple Sudoku Solver and Generator -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
