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Date: Thu, 6 Feb 2014 22:33:26 +0800 From: Daniel J Blueman <daniel@...ra.org> To: Freddy Xin <freddy@...x.com.tw> Cc: Netdev <netdev@...r.kernel.org> Subject: AX88179_178A USB3 ethernet adapter performance issue Hi Freddy et al, I'm experiencing poor network performance using an ASIX AX88179_178A USB3 to ethernet adapter using any recent linux kernel (eg 3.11), using an Intel XHCI USB3 controller. Running iperf tests between one host with a gigabit PCIe NIC, via a gigabit switch to the other host with various interfaces: PCIe bcm957762: send 818Mb/s, recv 910Mb/s USB2 smsc75xx: send 341Mb/s, recv 330Mb/s USB3 ax88179_178a: send 347Mb/s, recv 18.7Mb/s Are you able to reproduce the same 19Mb/s receive rate there? Many thanks, Daniel -- Daniel J Blueman -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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