Re: Previewing AIX 6 and open beta program

David J Dachtera <djesys.no@xxxxxxxxxxxxxxxx> wrote:
I'll see if I can re-find a link that was posted to the comp.os.vms
newsgroup about memory access comparisons of Alpha GS1280, Integrity
I64 and SuperDome I64 showing that the SuperDomes are almost 50%
slower at memory access than the GS1280s, similarly configured.

FWIW, there have been three separate CEC's for the systems HP calls
"SuperDomes." The first was for the HP 9000 Superdome, with PA-RISC
CPUs in it. That is, PA-RISC 8700 and earlier.

Then there was the first of the CECs for an Integrity SuperDome, which
was called "sx1000" externally. That is also used, IIRC for PA-8800
and PA-8900 SuperDomes.

The current CEC is called "sx2000" which is used for the Integrity
SuperDome's with the Itanium2 9000's, aka Montecito, processors.

Each has had differences in memory access latency and aggregate
bandwidth, so it would be best to be specific about which CEC in any
discussion.

Similarly, there have been two separate CECs for the smaller Integrity
systems. The first was zx1 (rx[12]6[02]0, rx4640, BL60p and some
others) the current is zx2 (rx2660, rx3600, rx6600, BL860)

sincerely,

rick jones
--
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