Re: [PATCH net-next 0/3] tcp: better deal with delayed TX completions

On Fri, Mar 12, 2021 at 10:18 AM Jakub Kicinski [off-list ref] wrote:

On Thu, 11 Mar 2021 12:35:03 -0800 Eric Dumazet wrote:

quoted

From: Eric Dumazet <edumazet@google.com>

Jakub and Neil reported an increase of RTO timers whenever
TX completions are delayed a bit more (by increasing
NIC TX coalescing parameters)

While problems have been there forever, second patch might
introduce some regressions so I prefer not backport
them to stable releases before things settle.

Many thanks to FB team for their help and tests.

Few packetdrill tests need to be changed to reflect
the improvements brought by this series.

FWIW I run some workloads with this for a day and looks good:

Tested-by: Jakub Kicinski <kuba@kernel.org>

Acked-by: Yuchung Cheng <redacted>
Thank you Eric for fixing the bug.

Thank you!