Re: [PATCH - RFC] [1/5] 64-bit network statistics - generic net

From: Ben Greear (
Date: Sat Jul 05 2003 - 16:41:00 EST

Jeff Garzik wrote:
> The net stats are already unsigned long internally.
> 64-bit case is handled quite nicely today, thanks :)
> I'm such a 64-bit bigot that "buy a 64-bit computer" is a solution I
> commonly suggest, and it seems to fit well here, too.
> Jeff, wondering if Intel will bother to compete w/ Athlon64

Untill the net-stats are 64-bit on 32-bit systems, we will need some
way to know if they have wrapped or not when reading from nettool
and getting 64-bit numbers.

I guess what I really mean to say is that, if nettool is returning 64-bit
values, we need to know which ones are obtained from 32-bit counters.
32 -> 64 bit mapping will require wrap handling on low 32-bits, but
64 -> 64 bit mapping will require wrapping about 4-billion times less often :)

Perhaps a precision field is also needed for backwards/forwards compatability,
and perhaps a nettool version field as well to also help with backwards/forwards



Ben Greear <>       <Ben_Greear AT>
President of Candela Technologies Inc

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