finding optimal ipfw strategy

[Andrey V. Elsukov]

On 26.08.2019 03:30, Eugene Grosbein wrote:
>>> Also, you should use old table numbers instead of new symbolic table names
>>> when you have many rules checking for interface names and much traffic
>>> because checks for numbered tables are slightly more efficient.
>>> You may use symbolic names still at source level:
>>
>> There isn't any old tables, all tables have symbolic names. Even when
>> you are creating "table(1)", its name is converted into symbolic name.
> 
> Yes, and this code path is slightly more efficient. A bit.

I have not any performance measurements, but this code is for
compatibility and it has more checks to implement this compatibility.
So, I doubt it is more efficient :)
Internally all symbolic names are mapped into indexes and there should
not be any performance impact on packets processing.

-- 
WBR, Andrey V. Elsukov

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