SMP contention improvements


Matthew Dillon was using poudriere, the dports build tool, on a 48-core system.  Poudriere was building all 20,000+ dports, so the machine was quite busy.  He decided to get rid of as much contention as possible, and he’s listed all the ways DragonFly’s been streamlined by these efforts.  We need to revisit some of our previous benchmarks

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  1. What kind of CPU and motherboard is Matthew Dillon using?

  2. Supermicro H8QG6
    AMD Opteron(tm) Processor 6168

    Helpfully supplied by Sascha Wildner.

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