Date: Thu, 21 Sep 2017 18:25:35 -0400 From: Chris Gordon <freebsd@theory14.net> To: Carl Johnson <carlj@peak.org> Cc: freebsd-arm@freebsd.org Subject: Re: Unexpected Results from nuttcp testing wifi on arm Message-ID: <0F498509-3B46-40F1-B638-2E17D0B5B865@theory14.net> In-Reply-To: <86tvzxs6sq.fsf@elm.localnet> References: <CABx9NuRjxrauDTpM=yam=Bpw-Wx6CHP8DVcpxV9WwE0tfutN6g@mail.gmail.com> <CABx9NuT_6JEWEhwjpvmPsEoQLeA7QHaeQ_Tt5seKFrDMJdN53w@mail.gmail.com> <86tvzxs6sq.fsf@elm.localnet>
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On Sep 20, 2017, at 11:56 AM, Carl Johnson <carlj@peak.org> wrote: > > Russell Haley <russ.haley@gmail.com> writes: > > I find that some USB adapter have asymmetric speeds, similar to what you > are seeing. I use iperf3 and get relatively symmetric speeds with a > RTL8188EU, but not with a RTL8188CUS. With the RTL8188CUS I see about > 20Mb/sec send and 1Mb/sec receive. The RTL8188EU gets about 19Mb/sec > send and about 21Mb/sec receive. I hope this helps a little, but I > don't know anything more than my observations. Thank you for that info. I’ve been dealing with the RTL8188CUS and am seeing similar performance in the best case. This finally isolates the “problem” down to the NIC itself. Thanks, Chrishelp
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