[RC5] Mac OS X Speed?

RogerKIWI at aol.com RogerKIWI at aol.com
Tue Dec 3 12:59:22 EST 2002

I installed the 

dnetc v2.9001-478-CTR-02112023 for Mac OS X (Darwin 6.2).

and as it started up these lines appeared

[Dec 03 12:31:20 UTC] Automatic processor type detection found
                       a PowerPC 7400 (G4) processor.
[Dec 03 12:31:20 UTC] RC5-72: Running micro-bench to select fastest core...
[Dec 03 12:31:33 UTC] RC5-72: using core #0 (ANSI 4-pipe).

I waited for it to slog through the first block and was surprised to find 
that it managed under 1 million keys/sec.

RC5-64 ran on this machine (dual 450 MHz G4) at up to 8,000,000 keys/sec.

does this new RC5-72 not use the AltiVec unit in the G4?



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