Re: Userspace <-> communication

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On 10/11/06, Girish Venkatachalam <girishvenkatachalam@xxxxxxxxx> wrote:
What is the userspace app? If I were you I would keep things in the kernel since FPGA are such slow things...

I think u have to directly manipulate your packet data from the FPGA memory.

What does the FPGA device do? And why are you so insistent on userspace?
These things have not yet been decided.


The context switch overhead between userspace and kernel is just too high to justify your stance...
Is it so? Hmm.. May be there exist some way to reduce such an
overhead. Otherwise how could tcpdump work fine. right?

Thanks,

Jinesh.

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