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Date: Mon, 24 Aug 2020 16:35:29 +0200 From: Robert Bengtsson-Ölund <robert.bengtsson-olund@...inor.se> To: netdev@...r.kernel.org Subject: Request for backport of 78dc70ebaa38aa303274e333be6c98eef87619e2 to 4.19.y Hi everyone We stumbled upon a TCP BBR throughput issue that the following change fixes. git: 78dc70ebaa38aa303274e333be6c98eef87619e2 Our issue: We have a transmission that is application limited to 20Mbps on an ethernet connection that has ~1Gbps capacity. Without this change our transmission seems to settle at ~3.5Mbps. We have seen the issue on a slightly different network setup as well between two fiber internet connections. Due to what the mentioned commit changes we suspect some middlebox plays with the ACK frequency in both of our cases. Our transmission is basically an RTMP feed through ffmpeg to MistServer. Best regards /Robert -- Robert Bengtsson-Ölund, System Developer Software Development +46(0)90-349 39 00 www.intinor.com -- INTINOR -- WE ARE DIREKT
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