OT Linux (RE: [rescue] OT: Stuffed Proliant?)
rescue at sunhelp.org
Sat Dec 22 12:56:36 CST 2001
On Sat, 22 Dec 2001, Patrick Giagnocavo wrote:
> The main boost seen from early MMX implementations was the increase in
> L2 cache size for the original Pentiums. SSE dunno. However Intel did
> one thing right when they added hw rotate instruction, which is used
> in crypto code and makes it faster.
Which they undid with the P4. There is no hardware rotate on the P4.
It gets trapped and emulated by the processor. So now the P4 is as
good at distributed.net (RC5) as an equivalently clocked Pentium.
(original, not even MMX)
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