Jan Klod napsal(a): > On Tuesday 26 August 2008 22:46:19 you wrote: >> Jan- >> >> I have five VIA/Centaur processor based systems from various eras (PadLock >> rev. 1 and rev. 2 feature-sets). >> >> If you give me a specific scenario to work through, I can probably generate >> at least some of the data you're looking for. > > At least I would like to be sure if it is a good idea to assume VIA C7 Eden > 1.2GHz (Fanless) could give at least 30MB/s for encrypted data reading form > HDD and sending through ssh! (if makes difference, software raid1 is planned) > > - > Linux-crypto: cryptography in and on the Linux system > Archive: http://mail.nl.linux.org/linux-crypto/ > > I don't know how C7 fast is but I have old C3 machine (VIA EPIA) running as fanless firewall and did some tests on encrypted FS and SSH (sorry, dm-crypt is already on /). >From core2 box through network via ssh to encrypted filesystem (aes-cbc-essiv:sha256): 100% 2049MB 2.8MB/s 12:13 Reading file to /dev/null: # dd if=some.file of=/dev/null bs=1M count=1024 1073741824 bytes (1.1 GB) copied, 203.296 s, 5.3 MB/s kernel: 2.6.25-2-486 (debian kernel, -486 due missing long noops) # cat /proc/cpuinfo processor : 0 vendor_id : CentaurHauls cpu family : 6 model : 9 model name : VIA Nehemiah stepping : 8 cpu MHz : 666.356 cache size : 64 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr cx8 sep mtrr pge cmov pat mmx fxsr sse rng rng_en ace ace_en bogomips : 1334.47 clflush size : 32 # lsmod | grep padlock padlock_aes 22848 2 crypto_blkcipher 17412 7 xts,padlock_aes,cbc,dm_crypt RAID+SSH+ENCRYPTION and at least 30MB/s performance sounds like you need a more faster CPU than single core 1.2GHz IMO Hope it helps.. Z. - Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/
