On Mon, Nov 16, 2009 at 12:33:46AM -0800, Simon Kirby wrote:
> It would seem to me that the best solution to this would be to actually
> have ACKs in the protocol, but that would be a pretty drastic change.
> Hmm... Comments? Ideas?
I created a patch once for ggaoed to catch retransmits. When a request
matching an I/O that is still in flight is detected, the patch just
updates the old request with the new tag and drops the new request, so
the real I/O is not duplicated. But with the (rather limited) testing I
did such retransmits were so rare that I decided tracking them is not
worth the overhead.
Gabor
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MTA SZTAKI Computer and Automation Research Institute
Hungarian Academy of Sciences
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