[openib-general] sdp sockets and zcopy?

Mon Apr 26 01:05:08 PDT 2004

Hello,

when do SDP socket writes translate to Zcopy?

looking at the code (ulp/sdp/*) it seems that write(2) on (sdp) socket
fd's always happen via Bcopy mechanism unless AIO support is compiled in
(and socket aio is used by the user app). is my understanding correct?

because from the code, write(2) happens via tsSdpInetSend() which looks
to be doing a copy into kernel space always. (i.e. using Bcopy method).

thanks
abhijit

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