[lkml]   [2003]   [Sep]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: Scaling noise

    On 03-Sep-2003 Larry McVoy wrote:
    > That was about 1995
    > or so. At that point, memory latency was about 200 ns and processor speeds
    > were at about 200Mhz or 5 ns. Today, memory latency is about 130 ns and
    > processor speeds are about .3 ns. Processor speeds are 15 times faster and
    > memory is less than 2 times faster. SMP makes that ratio worse.

    Latency is not bandwidth. btw you are right, that's why caches are
    growing, too. It's likely in the future there will be only UP (HT'd ?)
    and NUMA machines.

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 13:48    [W:0.022 / U:24.592 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site