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SubjectRe: [Lse-tech] Re: ext3 performance bottleneck as the number of spindles gets large
William Lee Irwin III wrote:
> On Sun, Jun 23, 2002 at 12:00:01AM -0600, Christopher E. Brown wrote:
>>However, multiple busses are *rare* on x86. There are alot of chained
>>busses via PCI to PCI bridge, but few systems with 2 or more PCI
>>busses of any type with parallel access to the CPU.
> NUMA-Q has them.

Yep, 2 independent busses per quad. That's a _lot_ of busses when you
have an 8 or 16 quad system. (I wonder who has one of those... ;)

Almost all of the server-type boxes that we play with have multiple
PCI busses. Even my old dual-PPro has 2.

Dave Hansen

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