Windows 10/11 TCP window scaling optimization

[kiler129]

I was wondering if any further TCP windowing optimization can be applied to consumer versions of Win 10/11, as the Internet profile cannot be changed to Datacenter. After extensive testing I'm unable to get even close on Windows<>Android to results from macOS<>Android or Linux<>Android.

Verifying with simple OpenSpeedTest: (I don't think I need to label which one is served from Windows ;))

The iperf results are similar:

# macOS client
% iperf3 -c <android> -O 4
...
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-10.00  sec   885 MBytes   742 Mbits/sec                  sender
[  5]   0.00-10.01  sec   886 MBytes   743 Mbits/sec                  receiver

# Windows 11 client; after optimization
>iperf3.exe -c <android> -O 4
...
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-10.00  sec   272 MBytes   228 Mbits/sec                  sender
[  4]   0.00-10.00  sec   272 MBytes   229 Mbits/sec                  receiver

[MysticFoxDE]

Hi @kiler129,

did you already run my optimization script on these Windows? Which Windows is that exactly, 10 or 11?

And yes, Windows handles network data, unfortunately much less effectively than Linux or iOS in many situations. 😔😭

Best Regards from Germany Alex