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Re:We migrated from AWS to GCP with minimal downtime by klabb3 on Friday June 07, 2024 @02:21PM (#40611409)
> I think you're right and high latency (~40ms) between endpoints triggered some bad TCP behavior.

40 ms, 200MB/s. The BDP limit for those numbers is 7.6 MB (if I’m holding it right) which is very close to tcp_wmem/tcp_rmem max on Debian like distros, so that sounds about right. Linux can be quite stingy with buffers by default. Easy to increase though!

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