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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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