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Operating Systems AIX AIX networking performance, during copying files Post 303029670 by Corona688 on Wednesday 30th of January 2019 10:29:08 AM
Old 01-30-2019
ssh, scp et al have high CPU overhead from encryption and aren't representative of down-to-the-wire performance.

You also have your disks to consider. How fast would that happen if you wrote to /dev/null instead of ssh? Also, caching. Does it speed up when you run it twice?
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tapset::networking(3stap)												 tapset::networking(3stap)

NAME
tapset::networking - systemtap networking tapset DESCRIPTION
This family of probe points is used to probe the activities of the network device. netdev.receive Data received from network device. See probe::netdev.receive(3stap) for details. netdev.transmit Network device transmitting buffer See probe::netdev.transmit(3stap) for details. netdev.change_mtu Called when the netdev MTU is changed See probe::netdev.change_mtu(3stap) for details. netdev.open Called when the device is opened See probe::netdev.open(3stap) for details. netdev.close Called when the device is closed See probe::netdev.close(3stap) for details. netdev.hard_transmit Called when the devices is going to TX (hard) See probe::netdev.hard_transmit(3stap) for details. netdev.rx Called when the device is going to receive a packet See probe::netdev.rx(3stap) for details. netdev.change_rx_flag Called when the device RX flag will be changed See probe::netdev.change_rx_flag(3stap) for details. netdev.set_promiscuity Called when the device enters/leaves promiscuity See probe::netdev.set_promiscuity(3stap) for details. netdev.ioctl Called when the device suffers an IOCTL See probe::netdev.ioctl(3stap) for details. netdev.register Called when the device is registered See probe::netdev.register(3stap) for details. netdev.unregister Called when the device is being unregistered See probe::netdev.unregister(3stap) for details. netdev.get_stats Called when someone asks the device statistics See probe::netdev.get_stats(3stap) for details. netdev.change_mac Called when the netdev_name has the MAC changed See probe::netdev.change_mac(3stap) for details. SEE ALSO
probe::netdev.receive(3stap), probe::netdev.transmit(3stap), probe::netdev.change_mtu(3stap), probe::netdev.open(3stap), probe::netdev.close(3stap), probe::netdev.hard_transmit(3stap), probe::netdev.rx(3stap), probe::netdev.change_rx_flag(3stap), probe::netdev.set_promiscuity(3stap), probe::netdev.ioctl(3stap), probe::netdev.register(3stap), probe::netdev.unregister(3stap), probe::netdev.get_stats(3stap), probe::netdev.change_mac(3stap), stap(1), stapprobes(3stap) IBM
--- tapset::networking(3stap)
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