Hi again, I was wrong (writing from memory) [...] On Mon, Apr 12, 2004 at 07:32:50PM +0200, uaca@alumni.uv.es wrote: > Well, this also depends on how you use it, the libpcap > I used (http://pusa.uv.es/~ulisses/packet_mmap/) copies > the frames from the ring to the user space buffer, so in this > case using PACKET_MMAP only gets the benefit of (nearly) not > issuing any system call (which is very important), but not > reducing the number of times data is copied > > In order to be compatible with current libpcap API, I think that is > necessary to copy the data > > There is another libpcap that uses PACKET_MMAP, see > > http://public.lanl.gov/cpw/ > > I did not checked that detail about this version. I'm going to look at it now both versions makes available to the user the frames from the ring sorry about this confusion regards Ulisses Debian GNU/Linux: a dream come true ----------------------------------------------------------------------------- "Computers are useless. They can only give answers." Pablo Picasso Humans are slow, innaccurate, and brilliant. Computers are fast, acurrate, and dumb. Together they are unbeatable ---> Visita http://www.valux.org/ para saber acerca de la <--- ---> Asociación Valenciana de Usuarios de Linux <--- - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
