[lkml]   [2000]   [Mar]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: bogo-bogomips
    Philipp Rumpf wrote:
    > On Fri, Mar 17, 2000 at 11:28:37PM +1100, Andrew Morton wrote:
    > > 2.3.99-pre1 is getting my bogomips wrong:
    > No it's not. It's calculating them in a different way (the rdtsc-
    > based __delay()) than older kernels did; this was necessary to
    > avoid problems with new / planned CPUs that have unexpected delay
    > loop behaviour (for example, Laptop CPUs that run at different
    > clock speeds when they are using AC rather than battery).

    Actually it won't correct for current laptop CPUs that vary the clock
    speed -- the tsc speed also varies.

    It will probably correct for future laptop CPUs though, such as (no
    surprise) the Transmeta one.

    -- Jamie

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

     \ /
      Last update: 2005-03-22 13:57    [W:0.019 / U:1.140 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site