Bandwidth test tool for Windows cause 100% core usage

Bandwidth test tool for Windows (tcp send) cause 100% core usage (3.5 GHz).
I can get only 165 Mbit/s with test to CCR
this test is absolutely unoptimized and do not use tcp offload?

I can get around 19,000 Mbit/s (aka about 19 gig) when I btest.
However - I am running x86 ROS on a 3+ Gig Hz Intel Zeon CPU
What’s nice about Zeon is that I have enough built-in CPU cache that the entire ROS runs in CPU cache instead of regular ram.

North Idaho Tom Jones

TomjNorthIdaho

You can post screenshot with “Bandwidth test tool for Windows” window and “Windows Task Manager” window in one screenshot?
I should see 19000 Mbit tcp send and CPU per core usage.