masayuki2009 commented on PR #7830:
URL: https://github.com/apache/nuttx/pull/7830#issuecomment-1343573205
@anchao
The defconfigs improve `iperf -c` but `iperf -s` does not work.
```
+ /home/ishikawa/opensource/QEMU/qemu-7.1/build/qemu-system-aarch64 -cpu
cortex-a53 -smp 4 -nographic -machine virt,virtualization=on,gic-version=3
-chardev stdio,id=con,mux=on -serial chardev:con -global
virtio-mmio.force-legacy=false -netdev
user,id=u1,hostfwd=tcp:127.0.0.1:10023-10.0.2.15:23,hostfwd=tcp:127.0.0.1:15001-10.0.2.15:5001
-device virtio-net-device,netdev=u1,bus=virtio-mmio-bus.0 -mon
chardev=con,mode=readline -kernel ./nuttx
telnetd [4:100]
NuttShell (NSH) NuttX-10.4.0
nsh> uname -a
NuttX 10.4.0 ae37c9a061 Dec 9 2022 08:52:47 arm64 qemu-armv8a
nsh> ps
PID GROUP PRI POLICY TYPE NPX STATE EVENT SIGMASK STACK
USED FILLED COMMAND
0 0 0 FIFO Kthread N-- Ready 00000000 008144
000992 12.1% Idle Task
1 1 192 RR Kthread --- Waiting Semaphore 00000000 008096
000960 11.8% hpwork 0x402d3428
2 2 100 RR Kthread --- Waiting Semaphore 00000000 008096
000960 11.8% lpwork 0x402d3458
3 3 100 RR Task --- Running 00000000 008112
003024 37.2% nsh_main
4 4 100 RR Task --- Waiting Semaphore 00000010 008112
001616 19.9% telnetd
nsh> iperf -c 43.31.77.50
IP: 10.0.2.15
mode=tcp-client sip=10.0.2.15:5001,dip=43.31.77.50:5001, interval=3, time=30
Interval Transfer Bandwidth
0.00- 3.01 sec 78479360 Bytes 208.58 Mbits/sec
3.01- 6.02 sec 153731072 Bytes 200.00 Mbits/sec
6.02- 9.03 sec 233570304 Bytes 212.20 Mbits/sec
9.03- 12.04 sec 314228736 Bytes 214.37 Mbits/sec
12.04- 15.05 sec 390135808 Bytes 201.75 Mbits/sec
15.05- 18.06 sec 470974464 Bytes 214.85 Mbits/sec
18.06- 21.07 sec 550240256 Bytes 210.67 Mbits/sec
21.07- 24.08 sec 626622464 Bytes 203.01 Mbits/sec
24.08- 27.09 sec 703201280 Bytes 203.53 Mbits/sec
27.09- 30.10 sec 783155200 Bytes 212.50 Mbits/sec
0.00- 30.10 sec 783155200 Bytes 208.15 Mbits/sec
iperf exit
nsh> iperf -s
IP: 10.0.2.15
mode=tcp-server sip=10.0.2.15:5001,dip=0.0.0.0:5001, interval=3, time=0
accept: 10.0.2.2,59832
Interval Transfer Bandwidth
0.00- 3.01 sec 27740 Bytes 0.06 Mbits/sec
3.01- 6.02 sec 27740 Bytes 0.00 Mbits/sec
6.02- 9.03 sec 27740 Bytes 0.00 Mbits/sec
tcp server recv error, error code: 11, reason: Unknown error
iperf exit
nsh>
```
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