Messages in this thread | | | From | Mihnea Balta <> | Subject | Kernel hooks just to get rid of copy_[to/from]_user() and syscall overhead? | Date | Fri, 10 Jan 2003 16:45:39 +0200 |
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Hi,
I have to implement a system which grabs udp packets off a gigabit connection, take some basic action based on what they contain, repack their data with a custom protocol header and send them through a gigabit ethernet interface on broadcast.
I know how to do this in userspace, but I need to know if doing everyting in the kernel would show a considerable speed improvement due to removing syscall and memory copy overhead. The system will be quite stressed, having to deal with around 15-20000 packets/second.
I didn't want to start this e-mail with an excuse, so I delayed it until here :). I appologise if this isn't the right place to ask, it seemed that way to me. I wasn't able to find sufficient and coherent information about this issue on the internet or on this mailing list's archives, so I decided to ask you people directly.
Thanks for your time, Mihnea Balta
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