UASP Linux server & Windows Client, what performance?

<p>I tried out the new goodness which is UASP, my setup is as follows:
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<p>- Linux server 4.3.0 on RPi4 running linux 5.10.17-v7l+<br />
- Windows client 5.2.0 on Ryzen 9 3950 running Win10 Pro (Version 10.0.19043 Build 19043)<br />
- Network is 1Gbit to RPi and 10Gbit to Windows<br />
- Samsung Portable SSD T3 (linux shows it as Superspeed Gen 1 (lsusb shows it as bcdUSB 3.0)
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<p>iperf3 between these machines gets an average of 943Mbit/s (around 111MB/s)
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<p>But with VH I'm seeing ~40MB/s with a 50-60% cpu usage best case. Is there anything else I can do with my RPi4 setup to push this higher? I know the SSD is able to push much higher speeds than this.
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<p>What are the rest of you seeing after this UASP improvement?</p>

#2

Quick follow up, I realized I was on 32bit so I changed it to 64bit kernel and the 64bit optimized version but I see no difference. Will try with a NVme drive next over USB3.

#3

Nevermind, I was doing writes only and sure enough, the drive has degraded in performance. Reading from the same drive reaches a solid 88.6MB/s with 50-60% CPU usage, so performance gains are here :-D

Huge thanks to the developer for making this change and completely blowing any other option out of the water.

#4

Yes that was about the performance i found with my testing as well.