2016-06-08 - Re: [GRASE-Hotspot] Re: Upload rate near zero with Grase

Header Data

From: Dražen Žuvela <dr***a@radez.hr>
Message Hash: be6e22818659d2de6d8826517327c97362c85305ad91fc524275decf4af305a0
Message ID: <a93d0067-d14f-dde8-c577-6ad39405ddac@radez.hr>
Reply To: <776a60ef-d7c3-439e-84f1-4b86d1f44343@grasehotspot.org>
UTC Datetime: 2016-06-08 00:09:07 UTC
Raw Date: Wed, 08 Jun 2016 09:09:07 +0200

Raw message 

This is interesting to me too. Never heard about "gro".

Now know bit more:

Generic Receive Offload
\u25cf GRO restricts what can be merged:
\u2013Identical MAC header.
\u2013Only certain IP header fields can differ.
\u2013Only certain TCP header fields can differ.
\u25cfMerged packet can be resegmented losslessly.
\u25cfGRO reuses GSO infrastructure.

GRO Status Quo
\u25cfSupported by many (but not all) 10GbE drivers.
\u25cfComplete conversion of remaining drivers.
\u25cfAddress any performance regressions.
\u25cfEventual removal of LRO. (Large Receive Offload)

(source of above abstract: 
https://events.linuxfoundation.org/images/stories/slides/jls09/jls09_xu.pdf 
)


However, I found this related to to 10Gb NICs

What was your NIC Marko?

*Dra\u017een*


8.6.2016. u 8:03, Marko Grdinic je napisao/la:
> Thank you very much! You saved me!
>
> You suggestion worked beautifully and now that I added the command to 
> /etc/rc.local it persists across restarts. I could not have figured 
> this out on my own. I've been studying this for an entire week and 
> never even heard of the gro command. I am sure glad to have gotten 
> this issue out of the way.
>
> Dana utorak, 7. lipnja 2016. u 22:33:15 UTC+2, korisnik Ali 
> Farajpahlou napisao je:
>
>     hey there! its been a long time since i've been here.
>
>     i had the same problem and i did solve it with turning gro off on
>     the lan interface of the hotspot.
>
>     u can do it by installing ethtool (shell: sudo apt-get install
>     ethtool), and using it to turn of the gro on selected interface
>     (example: ethtool -K eth1 gro off)
>
>     hope i've helped. don't know the reason, but this worked for me.
>
>     btw. i had this problem with http, for some reason https upload
>     was working (at least better than http!)
>
>     On Tue, Jun 7, 2016 at 6:17 PM, Marko Grdinic <mr***.@gmail.com
>     <javascript:>> wrote:
>
>         The above makes three actually, I thought might have missed
>         one. Email definitely uses https, the speed test is standard
>         http, and the ftp is ftp.
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