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    SubjectRe: 20% performance drop on PostgreSQL 9.2 from kernel 3.5.3 to 3.6-rc5 on AMD chipsets - bisected
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    On Mon, 2012-09-24 at 17:30 +0200, Peter Zijlstra wrote:

    > Anyway, does anybody have any clue as to why AMD and Intel machine
    > behave significantly different here? Does an Intel box with HT disabled
    > behave similar to AMD? or is it something about the micro-architecture?

    If you mean pgbench, it should act about the same on both. As soon as
    pgbench starts using significant CPU and has to compete, it'll start
    having trouble.

    -Mike



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