[Freemint-list] Slow network speed

[Markus Fröschle]

Maybe your expectations are set just too high?

Performance-wise, the FireBee is roughly comparable to a 1997 Pentium II 
233. You are basically comparing the network speed of a Pentium II class 
computer to modern equipment. I don't really remember the Pentium II 233 
network performance (and I don't really want to), but I doubt they were 
much faster.

iperf (available from Vincent's site) and for most other platforms 
elsewhere is a pretty good network measurement tool since it avoids any 
unnecessary overhead (http, for example, is a pretty chatty protocol). 
With this, you should see something between 50 and 90 Mb/s on a wired 
connection (depending on your FireBee's load). This is pretty close to 
the physical limit of a 100 Mbit connection.

iperf can not only measure the throughput to remote machines, but also 
(using localhost) to the local machine. If you test this, you'll 
basically see the performance of the MiNT network stack which wasn't 
much faster than over the wire in my tests (sometimes - probably due to 
the additional CPU load of the iperf server - even slower).

Nevertheless, I played a bit with the FEC driver. If you are curious, 
you might test the attached driver where I have increased the number of 
FEC DMA buffers by a factor of 5. For me, this significantly increased 
the download throughput of the particular test file you provided (tested 
on the m5484LITE that - in theory - is a about 30% slower than the FireBee):

100%[======================================>] 11536384 446KB/s   in 28s

on a local link, I get the this:

100%[======================================>] 11536384 5.09MB/s   in 2.2s

Note that this might make other things worse (due to the added latency), 
so your mileage may vary. I can provide a patch if it proves to be useful.

Cheers,

Markus



Am 01.10.2016 um 11:56 schrieb WongCK:
> mine is even slower than yours.
>
> 100%[================================>] 11536384     115K/s   in 1m 42s
>
>
>
>
> On Saturday, 3 September 2016, 17:02, Jean-François Lemaire 
> <jflemaire at skynet.be> wrote:
>
>
>
>     Hi all,
>
>     I've always had the impression that the network transfers on my
>     FireBee
>     were rather slow. So today I tested it with the following command, on
>     both my FireBee and my Linux box:
>
>     wget -O /dev/null
>     http://speedtest.wdc01.softlayer.com/downloads/test10.zip
>
>     And the result is 227K/s in 48s for the 'Bee and 2.08MB/s in 8.3s
>     for my
>     PC. Now, the PC is connected via cable, while the 'Bee uses wifi.
>     But I
>     don't think this may account for such a huge difference. My Android
>     tablet uses the same wifi and it's network performance is definitely
>     better.
>
>     My system:
>     FreeMiNT firebee 1.19a 4.4 falcon mc68060 falcon MiNT
>
>     Anyone can shed some light on this or even test it's own network?
>
>     Cheers,
>     JFL
>     -- 
>     Jean-François Lemaire
>
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>
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