Re: Re: Re: [PATCH 2/3] tcp: Reduce SYN resend delay if a suspicous ACK is received

From: Neal Cardwell
Date: Sat Feb 01 2020 - 08:37:34 EST


On Sat, Feb 1, 2020 at 1:08 AM SeongJae Park <sj38.park@xxxxxxxxx> wrote:
> RST/ACK is traced if LINGER socket option is applied in the reproduce program,
> and FIN/ACK is traced if it is not applied. LINGER applied version shows the
> spikes more frequently, but the main problem logic has no difference. I
> confirmed this by testing both of the two versions.
>
> In the previous discussion, I showed the LINGER applied trace. However, as
> many other documents are using FIN/ACK, I changed the trace to FIN/ACK version
> in this patchset for better understanding. I will comment that it doesn't
> matter whether it is FIN/ACK or RST/ACK in the next spin.

Great. Thanks for the details!

neal