michael.chepo...@gmail.com (Michael Cheponis) writes: >I use the built-in GigE adaptor on the RPi 4B, because it's convenient as I >have wired ethernet most places. So I can't help with WiFi.
Ethernet is also faster, even when the WiFi chip does 802.11ac. For Wifi on a RPI4b: With RPI-OS running iperf3 shows about 80Mbit/s. NetBSD (-current, but -10 should be similar) gets me about 40MBit/s. Wifi is connected to a SDHC controller, and handling I/O there generates quite some overhead (while iperf3 is running): PID LID USERNAME PRI STATE TIME WCPU CPU NAME COMMAND 0 118 root 123 CPU/1 1:33 39.45% 39.45% sdmmc0 [system] 7467 12269 mlelstv 85 mutex/2 0:03 4.79% 4.79% - iperf3 0 3 root 222 IDLE/0 0:04 2.59% 2.59% softnet*0 [system] 0 101 root 222 IDLE/3 0:03 1.81% 1.81% softnet*3 [system] 0 30 root 222 IDLE/2 0:02 1.32% 1.32% softnet*2 [system] 0 24 root 222 IDLE/1 0:02 0.93% 0.93% softnet*1 [system] That's about 80% of one core.