DO NOT MERGE THIS ONE!!
This commit drops RLC UM packets if the buffer occupancy is higher than 16MB. Let's say your UE can go up to 16Mb/s. If you do UDP iperf with let's say 40Mb/s very quickly the buffer occupancy will reach the 16Mb limit and following packets will get dropped. Then something goes wrong. I don't know what. Just that iperf reports very low throughput (I've seen down to 11 kb/s). Stopping iperf, waiting for buffer to be empty and starting again at let's say 10Mb/s does not provide 10Mb/s immediately, but eventually it does, as if the RLC UM "goes back to normal". So I don't know if it's a correct solution. conclusion: DO NOT MERGE!! Let's say it's work in progress, open for comments and suggestions.
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504a4bb3
Branches rru-txwrite-modification
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