Re: Increasing HZ (patch for HZ > 1000)

[Bill Davidsen]

Jean-Marc Valin wrote:

> Actually, the way I rewrote it in the patch is immune to that kind of
> problem:
>
> seq_printf(m, "\nbogomips\t: %lu.%02lu\n\n",
>            HZ*(c->loops_per_jiffy>>3)/62500,
>            (HZ*(c->loops_per_jiffy>>3)/625)%100);
>
> It will work correctly for any HZ up to ~34000 bogomips (using 32-bit
> arithmetic).

I think it's likely any CPU with 34000 bogomips will have more than 32 
bit ;-)

--
bill davidsen <davidsen@xxxxxxx>
  CTO TMR Associates, Inc
  Doing interesting things with small computers since 1979
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