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From: Rob Browning <rlb@defaultvalue.org>
To: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Subject: Re: Slow receive with rtl8192cu (usb ew-7811Un)
Date: Mon, 16 May 2011 22:41:40 -0500	[thread overview]
Message-ID: <87iptaj8nf.fsf@trouble.defaultvalue.org> (raw)
In-Reply-To: <4DD13EF0.2070803@lwfinger.net> (Larry Finger's message of "Mon, 16 May 2011 10:12:48 -0500")

Larry Finger <Larry.Finger@lwfinger.net> writes:

> Strange. With that patch in my system running with the current
> wireless-testing kernel, I get 19.8 Mbps download and 17.3 Mbps upload
> using tcpperf. The box at the other end is wired to my router/AP. The
> wireless connection is configured for 270 Mbps, thus rtl8192cu is not
> driving it at full rates, but that performance should be satisfactory.
>
> Please run the following command for a couple of minutes to see what rate you get:
>
> wget
> http://ftp.utexas.edu/opensuse/factory/iso/openSUSE-NET-x86_64-Build0018-Media.iso

So that command ran at essentially the rates you report for 10-20
seconds.  Then I killed it and tried another test I'd been using, which
was to lftp to ftp.kernel.org and get -c linux-2.6.39-rc7.tar.bz2.  That
transfer started at a high rate, but settled fairly quickly at about
60KB/s.  So I killed that transfer and restarted the wget, and it ran
steadily at ~60KB/s.

One question.  While I'm fairly certain that I'm running your patch,
would there be an easy way for me to be certain?  Perhaps I could add a
log message?

Thanks
-- 
Rob Browning
rlb @defaultvalue.org and @debian.org
GPG as of 2002-11-03 14DD 432F AE39 534D B592 F9A0 25C8 D377 8C7E 73A4

  reply	other threads:[~2011-05-17  3:41 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-14 17:01 Slow receive with rtl8192cu (usb ew-7811Un) Rob Browning
2011-05-16  0:50 ` Larry Finger
2011-05-16  2:26   ` Rob Browning
2011-05-16  3:39     ` Larry Finger
2011-05-16  5:18       ` Rob Browning
2011-05-16 15:12         ` Larry Finger
2011-05-17  3:41           ` Rob Browning [this message]
2011-05-17  3:57             ` Rob Browning
2011-05-17 16:34               ` Larry Finger
2011-05-17 23:04                 ` Rob Browning
2011-05-24  6:18                   ` Rob Browning
2011-06-04 20:32               ` Rob Browning
2011-06-08  2:38                 ` Rob Browning
2011-06-12 18:06                   ` Rob Browning
2011-07-10 20:24                     ` Rob Browning
2011-08-30  0:58                   ` Larry Finger

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