On Fri, 8 Mar 2002 weigand@texas.net wrote:
> If the assembler version is optimized for Pentiums, does that mean that
> it will not work well (or at all?) with AMD Athlons?
Typically -- assuming things like the MMX instructions haven't entered the
picture -- it will work but won't show any great performance advantage.
The DES library we use in FreeS/WAN (an early branch off what later became
the OpenSSL library, I think) has an assembler assist which nearly triples
performance on the earlier Pentiums, if I recall correctly, but shows very
little improvement over the C code on AMD K6s (haven't yet run timings on
more modern machines).
Henry Spencer
henry@spsystems.net
-
Linux-crypto: cryptography in and on the Linux system
Archive: http://mail.nl.linux.org/linux-crypto/
