"J.A. Terranson" <measl@mfn.org> writes:

On Sun, 12 Oct 2003, Lucky Green wrote:

...

I just picked up an Athlon64 3200+, which runs at a 2 GHz clock speed. Using the Red Hat for AMD64 beta and the version of OpenSSL that ships with that beta, I get 922 1024-bit RSA signs per second. This is a tad less RSA signatures per second than I have seen on an 800MHz Itanium using highly optimized assembler. That's rather poor performance on the Athlon64.

Are the figures that I am seeing typical for OpenSSL on the Athlon64? Has anybody here seen different figures using optimized code?

Was there ever a reply to this? If so, could someone forward it to me off- list, as I missed it :-(

The reply, sent off-list, was something like "You're running x86-32 code on an x86-64 CPU in emulation mode, what do you expect?" :-). In addition the Itanium RSA demo code works by turning the CPU into a $1000 ASIC, so you'd need to test it for SSL handshakes per second or something similar where the CPU has to do some other work besides RSA crypto ops. Peter.