add a config option for -Os compilation

PATCH Ihar 'Philips' Filipau 1 participant 1 message Oct 19, 2003 12 messages not in the archive

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Ihar 'Philips' Filipau

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2003-10-19 17:04 UTC #12 lore raw

Quoted 11 lines · Ihar 'Philips' Filipau

Quoted 8 lines · Wichert Akkerman
Quoted 2 lines · Previously Ihar 'Philips' Filipau
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.

Quoted 7 lines

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.

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Ihar 'Philips' Filipau  / with best regards from Saarbruecken.
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