RE: big picture UDP/IP performance question re 2.6.18 -> 2.6.32

From: Loke, Chetan
Date: Tue Oct 04 2011 - 16:02:02 EST

> Sometimes I think it might be nice to run without
> an OS at all :-)
> We are looking at various kernel bypass approaches
> for receiving packets and it's in my mind that
> one of these may get us to running on newer
> kernels without giving up performance.

If permissible in your environment, try running PACKET:tpacket_v3.

Also, I always wondered about the following in the output of:

dada edsa_rcv+0x0/0x246
001b dsa_rcv+0x0/0x225

and so when I'm fine tuning apps in virtual environments I nuke the
above during kernel compilation.

Chetan Loke
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