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SubjectRe: [2.6 patch] add a config option for -Os compilation
Ihar 'Philips' Filipau wrote:
> Wichert Akkerman wrote:
>
>> Previously Ihar 'Philips' Filipau wrote:
>>
>>> The goal of kernel is to provide framework for applications to the
>>> job well.
>>
>>
>> I doubt anyone using linux for routing would agree with you.
>>
>
> This is different matter.
> This is IO bound task - and I'm not sure how -Os will perform there.
> But still this depends on routing protocols and their requirements.
>
> In any way in this case bottleneck is PCI bus (DMA over PCI from NIC
> to main memory and back). I bet software will show up in timing tests as
> taking <10% of whole time.
>

Sorry I mean't calculations and alike will take <10%.
Sure in case of software router 90% of time will be spent in CPU.

--
Ihar 'Philips' Filipau / with best regards from Saarbruecken.
--
"... and for $64000 question, could you get yourself vaguely
familiar with the notion of on-topic posting?"
-- Al Viro @ LKML

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