[rc5] Why is v2 slower on SPARCs?

Paul Leskinen paul at csfi.com
Tue Jul 1 09:56:00 EDT 1997


Yup, this has been pointed out before, and I'm seeing the exact same
numbers as you. I'm currently running a modified v1 client that does about
74 Kkeys/sec on a 50 MHz Sparc 10 -- that's almost 20% faster than the v1
client. It's Remi Guyomarch's code--get the source at
http://wwwperso.hol.fr/~guyom001 or e-mail me directly for the
Sparc-compiled version.
You'll need gcc to compile it.  Of course, if you want the binary, you'll
have to trust me... ;)

 -- Paul Leskinen

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From: Adrian Sieber <Adrian.Sieber at unifr.ch>
To: rc5 at llamas.net
Subject: [rc5] Why is v2 slower on SPARCs?
Date: Tuesday, July 01, 1997 8:44 AM

Is there a reason for this (running on SunOS 5.5):

                         v1 client:       v2 client:

    Ultra 2, 200 MHz:  197122 keys/sec  161101 keys/sec 
    Sparc 5, 170 MHz:  113442 keys/sec   96498 keys/sec 
    Sparc 10, 50 MHz:   63262 keys/sec   58174 keys/sec 

Why isn't v2 at least the same speed as the old v1 clients?

--
Adrian Sieber
--------------------------------------------------------------------
Institute of Computer Science - University of Fribourg (Switzerland)

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