This idea was prompted by some talk on the Beowulf list. Here goes:
We can avoid a NIC -> kernel -> user copy sequence if we make a read
call that taked a SHM segment handle as the buffer pointer, and a pointer
to an int which we store the offset within the segment to the data.
It still returns the data size.
What do you guys think of this idea? Would we be able to implement
something like this (NIC -> userspaceable memory)?
Thanks,
Perry
-- Perry Harrington Linux rules all OSes. APSoft () email: perry@apsoft.com Think Blue. /\- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.altern.org/andrebalsa/doc/lkml-faq.html