Re: DWA-192 USB Wireless Network 5 GHz Interface Connection Speed Severely Degraded
On Tue, 2017-11-07 at 19:53 +1100, Stephen Morris wrote:
On 07/11/2017 10:51, stan wrote:
> On Tue, 7 Nov 2017 08:25:32 +1100
> Stephen Morris <samorris(a)netspace.net.au> wrote:
>
> > Having downloaded an updated version of the driver from Github
> > that now compiles and runs with the 4.13 kernel I have looked at the
> > wifi properties under Gnome and they tell me the connection speed is
> > 450Mb/sec which is about the connection speed I get under Windows 10
> > with the 2.4 GHz interface. Under Windows 10 the 5 GHz interface
> > connects at the documented speed of 1.3 Mb/sec. If I use the 2.4 GHz
> > interface for the device gnome tells me the connection speed is 252
> > Mb/sec.
> >
> > Why are the connection speeds in Fedora so degraded?
>
> I don't have an answer to your question, just a suggestion. What speed
> do you actually get when you test it? If the real life speed rather
> than the reported speed is different, then it is time to investigate
> why. If there is a real life discrepancy, then it could be that the
> firmware in linux is reverse engineered versus the custom tuned
> firmware for windows written by the manufacturer.
>
> Not sure if this will work for you, but there should be one you can use
> somewhere on the web.
>
> https://fast.com/
I couldn't access the site above but I could use the speedtest.net link
it linked to, which gave me a result of 12ms ping, 125.62 Mbps download
and 35.51 Mbps upload, but I'm not sure how that relates to the connect
speed between my machine and my router? I'm also not sure how I can get
125.62 Mbps download speed on a 100 Mbps cable connection.
You can't, which means these numbers should be taken with a pinch of
salt. Furthermore, I thought your concern was about your Wifi speed, in
which measuring your Internet speed with a Speedtest link isn't telling
you anything useful. You need to measure the actual transfer rate
between two hosts on your local network, e.g. by timing a large (multi-
gigabyte) file copy. If there is a significant difference between Linux
and Windows when doing this, then it's time to investigate further. If
possible, try both Windows-Windows and Linux-Linux, and make sure the
rest of the network is quiescent during the test.
poc