On Wed, Sep 17, 2008 at 10:16:22AM +0200, Michael Gebetsroither wrote: > * Andrew Miklas <public@xxxxxxx> wrote: > > >> hat do you want multicore support for ayways? Do you have an > >> application that can actually saturate even one core? Multicore > >> sounds like basicelly costing a lot of effort and postential > >> problems for nothing in return. > > > > I have an application where I definitely need multicore support. I've > > got a server running a I/O bound application over a RAID array capable > > of 150+ MB/s. All the data stored on disk needs to be encrypted. > > Unfortunately, my I/O throughput caps out at around 80-90 MB/s, even > > though there is plenty of spare CPU power (it is a quad-core system). > > > > I admit that needing full-disk encryption on a server is probably a > > bit of a rarity, but there are a few of us out here that actually need > > to do that. :) > > If it's a software raid you could encrypt the devices below the raid, > which gives you enough crypto threads. > > Here on my desktop i've a software raid5 which makes 130MB/s too (3 > disks). So to saturate the raid i've to put the encryption below the SW > raid. Otherwise i'd only get arround 90MB/s. Good idea! Arno -- Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@xxxxxxxxxxx GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F ---- Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans If it's in the news, don't worry about it. The very definition of "news" is "something that hardly ever happens." -- Bruce Schneier --------------------------------------------------------------------- dm-crypt mailing list - http://www.saout.de/misc/dm-crypt/ To unsubscribe, e-mail: dm-crypt-unsubscribe@xxxxxxxx For additional commands, e-mail: dm-crypt-help@xxxxxxxx
