VIA/ACE PadLock integration with crypto(9).

Mike Tancsa mike at sentex.net
Fri Aug 12 18:11:59 GMT 2005


At 09:56 AM 12/08/2005, Pawel Jakub Dawidek wrote:
>Whoa! This is nice:
>
>         # geli onetime -s 32768 gzero
>         # dd if=/dev/gzero.eli of=/dev/null bs=32k count=20000
>         655360000 bytes transferred in 6.101517 secs (107409355 bytes/sec)

Its pretty darn good speed wise to a normal drive on my one VIA box 
with AES 128. First is just a normal UFS mount, second is software 
crypto, 3rd is with padlock.ko loaded.  Only ~ 30% performance penalty.


102400000 bytes transferred in 3.174018 secs (32261948 bytes/sec) R
102400000 bytes transferred in 3.095546 secs (33079786 bytes/sec) W
102400000 bytes transferred in 13.073072 secs (7832895 bytes/sec) R
102400000 bytes transferred in 14.170376 secs (7226343 bytes/sec) W
102400000 bytes transferred in 5.107234 secs (20049992 bytes/sec) R
102400000 bytes transferred in 4.585821 secs (22329699 bytes/sec) W

Thats plenty good enough to saturate a 100Mb link.

CPU: VIA C3 Nehemiah+RNG+ACE (1199.79-MHz 686-class CPU)
   Origin = "CentaurHauls"  Id = 0x698  Stepping = 8
   Features=0x381b83f<FPU,VME,DE,PSE,TSC,MSR,SEP,MTRR,PGE,CMOV,PAT,MMX,FXSR,SSE>
real memory  = 251592704 (239 MB)
avail memory = 236720128 (225 MB)

FreeBSD via-releng5.sentex.ca 7.0-CURRENT FreeBSD 7.0-CURRENT #1

         ---Mike 



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