Arch Linux

beppo

Member

Registered: 2017-08-01

Posts: 26

Uncommon flucutation in downlaod speeds

Hello.
I'm trying to install Arch Linux on my Surface Pro 4.
I managed to connect to my wifi via the wifi-menu.
Problem: when downloading I get a very high fluctuation in download speeds from 1000KB/s to 10KB/s.

I tried solving that by:
-  Getting closer to the hotspot -> fluctuatuions persist
- Trying different faster mirrors -> no change

Then I noticed those kernel messages right after I connect: protocol 0003 buggy, dev wlp0s2.
So I wondered If the fluctuations have to do with that messages?

Last edited by beppo (2018-04-04 22:19:45)

jasonwryan

Anarchist

From: .nz

Registered: 2009-05-09

Posts: 30,426

Website

Re: Uncommon flucutation in downlaod speeds

Some actual details would help: card, driver, logs, etc...

Moving to NC.

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Arch + dwm   •   Mercurial repos  •   Surfraw

Registered Linux User #482438

beppo

Member

Registered: 2017-08-01

Posts: 26

Re: Uncommon flucutation in downlaod speeds

Currently running pacstrap, was hoping the error was enough to confirm the cause of the issue.
Will add more info as soon as its finished.

beppo

Member

Registered: 2017-08-01

Posts: 26

Re: Uncommon flucutation in downlaod speeds

Alright, in the eantime I‘ve also checked my internetspeed on my desktop in the same network via various benchmarks all of them showing normal consistent speeds.
Following the Wiki for setting up the wifi connection I get the following:

lspci -k:

Ethernet controller: Marvell Technology Group Ltd. 88W8897 [AVASTAR] 802.11ac Wireless
Subsystem: device 0003:045e
Kernel Driver in use: mwifiex_pcie

ip link

wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> ntu 1500 qdisc mq state UP mode DORMANT group default qlen 100 link/ether .....

after

ip link wlp2s0
dmesg | grep firmware

[drm] finished loading DMC firmware i915/skl_dmc_ver1_26.bin
platform regulatory.0: Direct firmware load for regulatory.db failed with error 2

dmesg | grep mwifiex_pcie
returns nothing

loqs

Member

Registered: 2014-03-06

Posts: 19,113

Re: Uncommon flucutation in downlaod speeds

Why the grep for firmware rather than posting the output of dmesg?
The results from the grep are from the i915 iGPU and cfg80211 failing to load the regulatory database as firmware file which is expected as arch does not ship that file.
Does the issue persist when you perform a pacman system update?
Did you try downloading files from the same mirrors pacman uses with the same command that pacman uses?
Edit:
spelling tot not to.

Last edited by loqs (2018-04-01 21:14:34)

beppo

Member

Registered: 2017-08-01

Posts: 26

Re: Uncommon flucutation in downlaod speeds

The system is up to date.
Is there a way to upload the dmesg log from the commandline?
I cant access my desktop atm. writing from an ipad

Edit: just checked the wiki about uploading from boot. Brb.

Last edited by beppo (2018-04-01 21:12:10)

beppo

Member

Registered: 2017-08-01

Posts: 26

Re: Uncommon flucutation in downlaod speeds

Tried pbpst and gist to upload the dmesg log, but both failed at uploading.
Checked my connection with speedtestcli and it reported good download and upload speeds.
forking a project atm. we‘ ll see how that turns out.

R00KIE

Forum Fellow

From: Between a computer and a chair

Registered: 2008-09-14

Posts: 4,734

Re: Uncommon flucutation in downlaod speeds

What is the problem of posting the dmesg output here inside code tags?

Is the desktop also using a wifi card or is it wired?

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R00KIE
Tm90aGluZyB0byBzZWUgaGVyZSwgbW92ZSBhbG9uZy4K

beppo

Member

Registered: 2017-08-01

Posts: 26

Re: Uncommon flucutation in downlaod speeds

The problem with uploading either with pbpst or gist is that the upload fails. And the desktop is of course also connected via wifi...
Is there another option to upload?

circleface

Member

Registered: 2012-05-26

Posts: 639

Re: Uncommon flucutation in downlaod speeds

Try https://wiki.archlinux.org/index.php/Li … in_clients

beppo

Member

Registered: 2017-08-01

Posts: 26

Re: Uncommon flucutation in downlaod speeds

The solution was to install the proper marvel drivers like so:

 git clone git://git.marvell.com/mwifiex-firmware.git
sudo mkdir -p /lib/firmware/mrvl/
sudo cp mwifiex-firmware/mrvl/* /lib/firmware/mrvl/ 

Last edited by beppo (2018-04-04 22:26:07)

loqs

Member

Registered: 2014-03-06

Posts: 19,113

Re: Uncommon flucutation in downlaod speeds

Please use code tags for commands and there outputs.  The directory /lib/firmware/mrvl should already have existed unless your system did not have the linux-firmware package installed.
Which firmware files did your device need to be updated?  You could ask marvell to submit updated firmware to linux-firmware repo so others can benefit.
Edit:
All the files from the git://git.marvell.com/mwifiex-firmware.git/mrvl/ match the files already provided by linux-firmware which should have been present in /lib/firmware/mrvl/

Last edited by loqs (2018-04-04 01:22:04)

beppo

Member

Registered: 2017-08-01

Posts: 26

Re: Uncommon flucutation in downlaod speeds

Oh, well thats embarasing. I'll try reproducing what I did.

beppo

Member

Registered: 2017-08-01

Posts: 26

Re: Uncommon flucutation in downlaod speeds

Alright I might have to admit that I jumped to conclusions too early. Having good speeds for a while not checking if its fixed does not fix it. Who would have thought, shame on me.

Now here are the dmesg and jorunalctl -k -b -0 logs.

Last edited by beppo (2018-04-04 22:33:44)