AMD64 NUMA-awareness?

From: Jung-uk Kim (jkim_at_niksun.com)
Date: 05/19/05

  • Next message: Scott Long: "Re: AMD64 NUMA-awareness?" 
    To: freebsd-arch@freebsd.org
Date: Thu, 19 May 2005 14:31:08 -0400

    ULE scheduler paper
    (http://www.usenix.org/publications/library/proceedings/bsdcon03/tech/roberson.html)
    says:

    'SMT introduces a concept of non-uniform processors into ULE which
    could be extended to support NUMA. The concept of expressing the
    penalty for migration through the use of separate queues could be
    further developed to include a local and global load-balancing
    policy. At the time of this writing, however, FreeBSD does not
    support any true NUMA capable machines and so this is left until such
    time that it does.'

    I am not sure about the meaning of 'true NUMA capable machines' but
    AMD64 is ccNUMA unless I am completely mistaken, and FreeBSD/amd64 is
    well-supported. Even multicore processors are available now and
    Intel is going to release dual-core processors with HTT to make
    matters worse.

    Is there anybody working on this?

    Thanks,

    Jung-uk Kim
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  • Next message: Scott Long: "Re: AMD64 NUMA-awareness?"