[Pc_Support] Bus Bottleneck Crash, No Bandwidth Left?

[Derek Konigsberg]

> But unlike Intel's marketing, there _are_ "switched" PCI/PCI-X
> designs.  They're called HyperTransport tunnels/bridges.  In fact,
> HyperTransport PCIe tunnels are more "true switched" PCIe designs
> than Intel's new MCH/ICH which use PCIe channels as a poor-man's
> system interconnect.
Or, they're called "you didn't buy a PC, and got a machine with multiple PCI 
busses plugged into a crossbar interconnect" :-)
(assuming pre-HyperTransport days, of course)

Speaking of this subject area, anyone know if the limited IRQ stupidity has 
gone away with newer EFI-based machines (such the new MacTel boxes)?
(yes, I know about IRQ sharing, but it still feels like an ugly hack, like the 
BIOS, and most of what has been needed to maintain x86 legacy compatability 
on modern x86 machines)

-- 
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Derek Konigsberg
octo at .logicprobe.org
http://hecgeek.blogspot.com
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