Re: tlug: bogomips

[Felix Morley Finch <felix@example.com>]

>>In article <Pine.LNX.3.96.980317132847.4707t-100000@example.com>, Scott Stone <sstone@example.com> writes:

> Any idea how 'bogomips' are calculated by the kernel?  Ie, why does a
> K6-200 produce 400.59 and a Pentium-II 300 produce 307.20 ?

Don't know the details, but I believe it is strictly intended for
minor timings in a spin loop - if some I/O device needs a 3 micro
second wait between actions, you call a kernel routine which uses the
BogoMips value to loop enough for exactly 3 uSec.  That's why it
calibrates at boot time, and why it has changed once in a while from
kernel to kernel.

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