masayuki2009 commented on PR #7830: URL: https://github.com/apache/nuttx/pull/7830#issuecomment-1345841439
>This is not caused by the commit of https://github.com/apache/nuttx/pull/7616. This issue existed before https://github.com/apache/nuttx/pull/7616 was merged. @anchao Hmm, I do not think so. With the latest upstream, `iperf -s` in TCP mode achieves ~120Mbps. ``` + /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 [7:100] NuttShell (NSH) NuttX-10.4.0 nsh> ps PID GROUP CPU PRI POLICY TYPE NPX STATE EVENT SIGMASK STACK USED FILLED COMMAND 0 0 0 0 FIFO Kthread N-- Assigned 00000000 008144 001088 13.3% CPU0 IDLE 1 1 1 0 FIFO Kthread N-- Running 00000000 008144 000320 3.9% CPU1 IDLE 2 2 2 0 FIFO Kthread N-- Running 00000000 008144 000320 3.9% CPU2 IDLE 3 3 3 0 FIFO Kthread N-- Running 00000000 008144 000080 0.9% CPU3 IDLE 4 4 --- 192 RR Kthread --- Waiting Semaphore 00000000 008096 000496 6.1% hpwork 0x402d55d0 5 5 --- 100 RR Kthread --- Waiting Semaphore 00000000 008096 000528 6.5% lpwork 0x402d5600 6 6 0 100 RR Task --- Running 00000000 008112 002288 28.2% nsh_main 7 7 --- 100 RR Task --- Waiting Semaphore 00000010 008112 001216 14.9% telnetd nsh> uname -a NuttX 10.4.0 4a84555d1c Dec 12 2022 12:55:55 arm64 qemu-armv8a 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: 10.0.2.2,53868 Interval Transfer Bandwidth 0.00- 3.01 sec 26281460 Bytes inf Mbits/sec 3.01- 6.02 sec 72277300 Bytes inf Mbits/sec 6.02- 9.03 sec 117957780 Bytes inf Mbits/sec closed by the peer: 10.0.2.2,59578 iperf exit nsh> On Ubuntu: $ iperf -c localhost -p 15001 -i 1 -t 10 ------------------------------------------------------------ Client connecting to localhost, TCP port 15001 TCP window size: 3.26 MByte (default) ------------------------------------------------------------ [ 3] local 127.0.0.1 port 59578 connected with 127.0.0.1 port 15001 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 1.0 sec 3.34 MBytes 28.0 Mbits/sec [ 3] 1.0- 2.0 sec 14.8 MBytes 124 Mbits/sec [ 3] 2.0- 3.0 sec 15.0 MBytes 126 Mbits/sec [ 3] 3.0- 4.0 sec 14.4 MBytes 121 Mbits/sec [ 3] 4.0- 5.0 sec 14.2 MBytes 120 Mbits/sec [ 3] 5.0- 6.0 sec 14.9 MBytes 125 Mbits/sec [ 3] 6.0- 7.0 sec 14.8 MBytes 124 Mbits/sec [ 3] 7.0- 8.0 sec 13.6 MBytes 114 Mbits/sec [ 3] 8.0- 9.0 sec 15.0 MBytes 126 Mbits/sec [ 3] 9.0-10.0 sec 14.9 MBytes 125 Mbits/sec [ 3] 0.0-10.1 sec 135 MBytes 112 Mbits/sec ``` However, with this PR, `iperf -s` in TCP mode is much slower. ``` + /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 [7:100] NuttShell (NSH) NuttX-10.4.0 nsh> uname -a NuttX 10.4.0 a13c876080 Dec 12 2022 12:57:33 arm64 qemu-armv8a nsh> ps PID GROUP CPU PRI POLICY TYPE NPX STATE EVENT SIGMASK STACK USED FILLED COMMAND 0 0 0 0 FIFO Kthread N-- Assigned 00000000 008144 001040 12.7% CPU0 IDLE 1 1 1 0 FIFO Kthread N-- Running 00000000 008144 000320 3.9% CPU1 IDLE 2 2 2 0 FIFO Kthread N-- Running 00000000 008144 000320 3.9% CPU2 IDLE 3 3 3 0 FIFO Kthread N-- Running 00000000 008144 000080 0.9% CPU3 IDLE 4 4 --- 192 RR Kthread --- Waiting Semaphore 00000000 008096 000496 6.1% hpwork 0x402d55d0 5 5 --- 100 RR Kthread --- Waiting Semaphore 00000000 008096 000528 6.5% lpwork 0x402d5600 6 6 0 100 RR Task --- Running 00000000 008112 002240 27.6% nsh_main 7 7 --- 100 RR Task --- Waiting Semaphore 00000010 008112 001216 14.9% telnetd 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: 10.0.2.2,42298 Interval Transfer Bandwidth 0.00- 3.01 sec 110424 Bytes 0.29 Mbits/sec 3.01- 6.02 sec 215274 Bytes 0.27 Mbits/sec 6.02- 9.03 sec 320124 Bytes 0.27 Mbits/sec 9.03- 12.04 sec 424974 Bytes 0.27 Mbits/sec 12.04- 15.05 sec 529824 Bytes 0.27 Mbits/sec 15.05- 18.06 sec 634674 Bytes 0.27 Mbits/sec 18.06- 21.07 sec 739524 Bytes 0.27 Mbits/sec 21.07- 24.08 sec 844374 Bytes 0.27 Mbits/sec 24.08- 27.09 sec 949224 Bytes 0.27 Mbits/sec 27.09- 30.10 sec 1054074 Bytes 0.27 Mbits/sec 30.10- 33.11 sec 1179737 Bytes 0.33 Mbits/sec 33.11- 36.12 sec 1368553 Bytes 0.50 Mbits/sec 36.12- 39.13 sec 1471220 Bytes 0.27 Mbits/sec On Ubuntu: $ iperf -c localhost -p 15001 -i 1 -t 10 ------------------------------------------------------------ Client connecting to localhost, TCP port 15001 TCP window size: 3.26 MByte (default) ------------------------------------------------------------ [ 3] local 127.0.0.1 port 42298 connected with 127.0.0.1 port 15001 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 1.0 sec 3.34 MBytes 28.0 Mbits/sec [ 3] 1.0- 2.0 sec 0.00 Bytes 0.00 bits/sec [ 3] 2.0- 3.0 sec 4.71 MBytes 39.6 Mbits/sec [ 3] 3.0- 4.0 sec 512 KBytes 4.19 Mbits/sec [ 3] 4.0- 5.0 sec 0.00 Bytes 0.00 bits/sec [ 3] 5.0- 6.0 sec 0.00 Bytes 0.00 bits/sec [ 3] 6.0- 7.0 sec 0.00 Bytes 0.00 bits/sec [ 3] 7.0- 8.0 sec 0.00 Bytes 0.00 bits/sec [ 3] 8.0- 9.0 sec 0.00 Bytes 0.00 bits/sec [ 3] 9.0-10.0 sec 0.00 Bytes 0.00 bits/sec [ 3] 0.0-10.2 sec 8.56 MBytes 7.05 Mbits/sec ``` -- This is an automated message from the Apache Git Service. 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