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Re: altq tbr_set
Dan Shechter wrote:
> Just trying to read src/sys/altq.
> What are TBR_SCALE and TBR_UNSCALE used for? I know what they do, but
> I don't understand what they r used for?
in the userland, the tokenbucket rate and depth are expressed in
bits/sec and bytes but, in the kernel, they are converted to values
relative to the CPU clock frequency. these values are scaled not to
overflow or underflow u_int64_t with varying clock frequencies.
> Whare machclk_freq is declaired? It's extern in altq_var.h but i
> can't find it in src/sys