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: >=20 > Russell Haley <russ.haley@gmail.com> writes: >=20 > 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=E2=80=99ve been dealing with the RTL8188CUS = and am seeing similar performance in the best case. This finally = isolates the =E2=80=9Cproblem=E2=80=9D down to the NIC itself. Thanks, Chris=
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