Hello:
This patch was applied to netdev/net.git (refs/heads/master):
On Mon, 16 Nov 2020 17:44:13 +0000 you wrote:
> From: Ryan Sharpelletti <sharpelle...@google.com>
>
> During loss recovery, retransmitted packets are forced to use TCP
> timestamps to calculate the RTT samples, which have a millisecond
> granularity. BBR is designed using a microsecond granularity. As a
> result, multiple RTT samples could be truncated to the same RTT value
> during loss recovery. This is problematic, as BBR will not enter
> PROBE_RTT if the RTT sample is <= the current min_rtt sample, meaning
> that if there are persistent losses, PROBE_RTT will constantly be
> pushed off and potentially never re-entered. This patch makes sure
> that BBR enters PROBE_RTT by checking if RTT sample is < the current
> min_rtt sample, rather than <=.
>
> [...]
Here is the summary with links:
- [net] tcp: only postpone PROBE_RTT if RTT is < current min_rtt estimate
https://git.kernel.org/netdev/net/c/1b9e2a8c99a5
You are awesome, thank you!
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