>Perhaps we could turn on async clunk for other files when the chan has >CCACHE set (mount -C iirc). We already believe that the fileserver is >'decent' then...
that's more plausible, since you've declared that you're not interested in certain details, but then the larger question arises: why pick on clunk? in Op, the thing that reduces network latency is combining the sequence open, (read|write), close into a single operation. (for brucee's case, the CCACHE check wouldn't be sufficient: it needs to be the other ones as well.)
