RFR(s): Improving performance of Windows socket connect on the loopback adapter

[Alan Bateman]

On 24/07/2020 16:20, Nikola Grcevski wrote:
> Thanks Alan, yes I'll need a sponsor for the patch.
>
>
I tried the patch in our CI and test/jdk/java/net/Socket/Timeouts.java 
is consistently failing on Windows Server 2016 systems, specifically 
testTimedConnect2 which expects a "connection refused" within 10s of 
attempting to connect to a port on the loopback that doesn't have any 
service running. SIO_TCO_INITIAL_RTO seems to be intended for desktop 
systems so I'm wondering if you can find out if there is any issues with 
using it on Windows Server editions.

-Alan