On Thu, Mar 16, 2006 at 10:52:01PM +0100, Dag Arne Osvik wrote: > > 187.5 is for the existing x86-64 asm module running on an AMD Athlon 64. > None of the above numbers are for my code, since I haven't made a > kernel module of it just yet, and hence can't report tcrypt testing > results for it.
OK. > The only real news I'm presenting is that my code performs CBC-like > encryption in about 233 cycles on a 64-bit Intel Celeron. Apart from > that, I was very surprised that CBC-mode encryption in the kernel is so > slow compared to ECB. The difference is really just four xor operations > per block. I see. The good news is that with the upcoming parameterised crypto stuff you'll be able to have an asm-optimised CBC implementation just like AES. It'd be interesting to see whether the speed-up is coming from doing CBC in asm or just eliminating indirect function calls. Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <[EMAIL PROTECTED]> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt - To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
