A slight change to tcpip_fillheaders...

Xin LI delphij at delphij.net
Wed Jun 2 23:10:29 UTC 2010


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On 2010/06/02 15:09, George Neville-Neil wrote:
> Howdy,
> 
> A while back another src developer mentioned that he had gotten better performance by changing
> tcpip_fillheaders() in the following way:
[...]
> I have tried this change with NetPIPE (NPtcp -b 100000) on a pair of machines using Intel igb devices and found
> that it provides no improvement, but I am wondering if other people want to try this and
> see if it improves throughput at all.  I was testing this on a Nehalem class machine, not sure if it
> might help on other architectures.

I'd for this change if it doesn't cause performance regression :)

Cheers,
- -- 
Xin LI <delphij at delphij.net>	http://www.delphij.net/
FreeBSD - The Power to Serve!	       Live free or die
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