[NTLUG:Discuss] localhost vs "real" IP address

[Jerome Haltom]

I'm going to be non traditional and say no. Knowing that the address is 
local, it completely bypasses any driver.

Chris Cox wrote:
> George Lass wrote:
>   
>> Does anyone know offhand how much more overhead (if any) is involved in TCP/IP messaging to 127.0.0.1 versus the "real" IP address assigned to eth0 on the local machine?  If it make any difference, I am running an old (2.4.18) kernel.
>>
>>     
>
> Less.  Should be less overhead due to lack of a NIC style driver.  No typical "bandwidth" constraints.
>
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