7.0-release / systat / 3GB

Kris Kennaway kris at FreeBSD.org
Thu Jul 3 07:12:37 UTC 2008


Wojciech Puchar wrote:
>>
>> I am a bit curious though why once the outgoing bandwidth exceeds 
>> (more or less) 3GB, the Total counter gets reset and starts counting 
>> from scratch.
> 
> isn't it 4GB - because of 32-bit unsigned counter?

I would guess so.

Using a 64-bit counter on 32-bit systems would cause additional 
processing overhead for little benefit.

Kris



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