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Originally Posted by Chrysalis
Qas are you sure large rwins reduce ack overhead? The only thing I have found that affects ack overhead is delayed acks, nagle algorithm and adjusting mtu(mss) size. Whilst boosting rwin allows higher throughput the ack throughput goes up with it. Also supressing acks isnt without consequence, its good for certian bulk downloads but bad for small packets. sacks also sends the same amount of acks, the difference sacks offers is just how recovery works if packets are dropped
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You can ACK a whole RWIN with a single ACK (instead of, say, ~50 or so which is more usual). As you mention though, it doesn't work effectively in all scenarios (i.e. I did say zero packet loss)
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Thats what I thought until my neighbour was put on 12mbit without bonding and I seen reports on tbb with the same.
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Oh. Fail.
