indeed :) another words if you have modern NIC than you get "zero-copy"(except copy_to_user()) for free :) Regards, Dima On Tue, 2004-12-21 at 14:30 -0500, Jeff Garzik wrote: > Dmitry Yusupov wrote: > > Rajat, > > > > small correction, if NIC supports DMA operation on receive, than no > > extra copy required. Therefore sock_recvmsg() and tcp_read_sock > > large correction: if NIC supports _checksum_ on receive, then no extra > copy is required. > > Jeff > -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/