Re: is CONFIG_PACKET_MMAP always a win?
Alan Cox (alan@lxorguk.ukuu.org.uk)
Fri, 22 Feb 2002 02:33:02 +0000 (GMT)
> c) enable CONFIG_PACKET_MMAP, use PACKET_RX_RING, and read packets from an mmap'd ring buffer
> Overhead: kernel does a full memcpy of the packet body to get it
> into the ring buffer, and my program does another to get it out.
Why are you copying it out of the ring not processing it in place ?
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