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    SubjectRe: [PATCH] linux-2.5.67_lost-tick-fix_A2
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    On Wed, 2003-04-16 at 16:03, george anzinger wrote:
    > john stultz wrote:
    > > Some of the divs and mods being added here might concern folks, but by
    > > not calling timer->get_offset() in detect_lost_tick() we eliminate much
    > > of the same math. I did some simple cycle counting and the new code
    > > comes out on average equivalent or faster.
    >
    > I think that if you look at the generated code you may find that there
    > are NO div in the asm code. The C folks know about scaling to avoid
    > div especially when the divisor is a constant :)

    Indeed you are correct. An objdump of both the timer_tsc.o and
    timer_cyclone.o code reveals that the only divs occur in init code. I
    like your argument better then mine :)

    thanks
    -john




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