Rusty Russell wrote: > You didn't quote Anthony's point about "it's more about there not being > good enough userspace interfaces to do network IO." > > It's easier to write a kernel-space network driver, but it's not > obviously the right thing to do until we can show that an efficient > packet-level userspace interface isn't possible. I don't think that's > been done, and it would be interesting to try. >
In the case of networking, the copyful interfaces on receive are driven by the hardware not knowing how to split the header from the data. On transmit I agree, it could be made copyless from userspace (somthing like sendfilev, only not file oriented). -- Do not meddle in the internals of kernels, for they are subtle and quick to panic. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
