yggdrasil-go
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yggdrasil-network
Strange speed behavior after the first minute.
During testing of the previous issue, I encountered such strange behavior. The same two nodes. First, we perform a control test on the link-local address.
[ 7][RX-C] 58.00-59.00 sec 476 MBytes 4.00 Gbits/sec
[ 5][TX-C] 59.00-60.00 sec 738 MBytes 6.19 Gbits/sec 3 1.26 MBytes
[ 7][RX-C] 59.00-60.00 sec 419 MBytes 3.52 Gbits/sec
[ 5][TX-C] 60.00-61.00 sec 742 MBytes 6.23 Gbits/sec 209 990 KBytes
[ 7][RX-C] 60.00-61.00 sec 516 MBytes 4.33 Gbits/sec
[ 5][TX-C] 61.00-62.00 sec 761 MBytes 6.39 Gbits/sec 11 1.01 MBytes
[ 7][RX-C] 61.00-62.00 sec 517 MBytes 4.34 Gbits/sec
[ 5][TX-C] 62.00-63.00 sec 791 MBytes 6.64 Gbits/sec 7 1.09 MBytes
Nothing special is happening. And now let's repeat the same test through yggdrasil.
[ 5][TX-C] 58.00-59.00 sec 134 MBytes 1.12 Gbits/sec 0 3.14 MBytes
[ 7][RX-C] 58.00-59.00 sec 132 MBytes 1.11 Gbits/sec
[ 5][TX-C] 59.00-60.00 sec 126 MBytes 1.06 Gbits/sec 0 3.14 MBytes
[ 7][RX-C] 59.00-60.00 sec 128 MBytes 1.07 Gbits/sec
[ 5][TX-C] 60.00-61.00 sec 96.2 MBytes 807 Mbits/sec 0 3.14 MBytes
[ 7][RX-C] 60.00-61.00 sec 94.0 MBytes 788 Mbits/sec
[ 5][TX-C] 61.00-62.00 sec 93.8 MBytes 786 Mbits/sec 0 3.14 MBytes
[ 7][RX-C] 61.00-62.00 sec 95.1 MBytes 798 Mbits/sec
[ 5][TX-C] 62.00-63.00 sec 98.8 MBytes 828 Mbits/sec 0 3.14 MBytes
The result is absolutely repeatable. Both on 0.5.4 and 0.5.4-5. The speed sharply drops exactly on the 60th second. I'll answer a possible question right away - the comparison was made through the same link-local through which the session between the nodes is established. What else would you recommend checking to identify this issue? I currently don't have any ideas.
The only thing I can think of here is that this coincides with session key rotation taking place after 60 seconds...
We have a suspicion of what is happening but so far I haven't been able to reproduce it.
I will try to have another look over the next couple days, otherwise it might be something we spend more time on or refactor after we've released some other fixes in 0.5.5.
Can you please test this again on the latest develop? The session key exchange behaviour has been improved so this should be fixed.
Can you please test this again on the latest
develop? The session key exchange behaviour has been improved so this should be fixed.
Build name: yggdrasil-develop Build version: 0.5.5-8-g2831d73
I don't see a problem - it seems to be resolved. Thank you!