masayuki2009 commented on PR #9297:
URL: https://github.com/apache/nuttx/pull/9297#issuecomment-1581744463
>@masayuki2009 Thanks, we figure out the reason and update the patch, new
test results are also updated, could you take a look?
@CV-Bowen
Now rv-virt:knetnsh64_smp works but it seems that the performance is not
good compared to the latest master.
With this PR,
```
NuttShell (NSH) NuttX-10.2.0
nsh> uname -a
NuttX 10.2.0 73ba318ed8 Jun 8 2023 09:37:54 risc-v rv-virt
nsh> ps
PID GROUP CPU PRI POLICY TYPE NPX STATE EVENT SIGMASK
STACK USED FILLED COMMAND
0 0 0 0 FIFO Kthread N-- Assigned 0000000000000000
003024 001592 52.6% CPU0 IDLE
1 1 1 0 FIFO Kthread N-- Running 0000000000000000
003024 000584 19.3% CPU1 IDLE
2 2 2 0 FIFO Kthread N-- Running 0000000000000000
003024 000584 19.3% CPU2 IDLE
3 3 3 0 FIFO Kthread N-- Running 0000000000000000
003024 000584 19.3% CPU3 IDLE
4 4 --- 224 RR Kthread --- Waiting Semaphore 0000000000000000
001952 000408 20.9% hpwork 0x80205988
5 5 --- 100 RR Kthread --- Waiting Semaphore 0000000000000000
001952 000408 20.9% lpwork 0x802059b8
6 6 0 100 RR Task --- Running 0000000000000000
002976 001720 57.7% /system/bin/init
7 7 --- 100 RR Task --- Waiting Semaphore 0000000000020000
001968 000648 32.9% telnetd
nsh> free
total used free largest nused nfree
Kmem: 1945936 115968 1829968 1826800 83 5
Page: 4194304 1277952 2916352 2916352
nsh> iperf -s -i 1
IP: 10.0.2.15
mode=tcp-server sip=10.0.2.15:5001,dip=0.0.0.0:5001, interval=1, time=0
accept: 10.0.2.2:42966
Interval Transfer Bandwidth
0.00- 1.01 sec 21740920 Bytes 172.21 Mbits/sec
1.01- 2.02 sec 17514024 Bytes 138.72 Mbits/sec
2.02- 3.03 sec 17508692 Bytes 138.68 Mbits/sec
3.03- 4.04 sec 17411632 Bytes 137.91 Mbits/sec
4.04- 5.05 sec 17481728 Bytes 138.47 Mbits/sec
```
With the latest master,
```
NuttShell (NSH) NuttX-12.0.0
nsh> uname -a
NuttX 12.0.0 b89215a11f Jun 8 2023 09:46:10 risc-v rv-virt
nsh> ps
PID GROUP CPU PRI POLICY TYPE NPX STATE EVENT SIGMASK
STACK USED FILLED COMMAND
0 0 0 0 FIFO Kthread N-- Assigned 0000000000000000
003024 001592 52.6% CPU0 IDLE
1 1 1 0 FIFO Kthread N-- Running 0000000000000000
003024 000584 19.3% CPU1 IDLE
2 2 2 0 FIFO Kthread N-- Running 0000000000000000
003024 000584 19.3% CPU2 IDLE
3 3 3 0 FIFO Kthread N-- Running 0000000000000000
003024 000584 19.3% CPU3 IDLE
4 4 --- 224 RR Kthread --- Waiting Semaphore 0000000000000000
001952 000408 20.9% hpwork 0x80205778
5 5 --- 100 RR Kthread --- Waiting Semaphore 0000000000000000
001952 000408 20.9% lpwork 0x802057a8
6 6 0 100 RR Task --- Running 0000000000000000
002976 001720 57.7% /system/bin/init
7 7 --- 100 RR Task --- Waiting Semaphore 0000000000020000
001968 000648 32.9% telnetd
nsh> free
total used free largest nused nfree
Kmem: 1945936 38496 1907440 1906672 92 3
Page: 4194304 1277952 2916352 2916352
nsh> iperf -s -i 1
IP: 10.0.2.15
mode=tcp-server sip=10.0.2.15:5001,dip=0.0.0.0:5001, interval=1, time=0
accept: 10.0.2.2:49160
Interval Transfer Bandwidth
0.00- 1.02 sec 25213764 Bytes 197.76 Mbits/sec
1.02- 2.03 sec 25088640 Bytes 198.72 Mbits/sec
2.03- 3.04 sec 25368960 Bytes 200.94 Mbits/sec
3.04- 4.05 sec 25217120 Bytes 199.74 Mbits/sec
4.05- 5.06 sec 25193760 Bytes 199.55 Mbits/sec
```
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