Bug 1718586 - Fedora 30: extreme inconsistency on connection speed
Summary: Fedora 30: extreme inconsistency on connection speed
Keywords:
Status: CLOSED DUPLICATE of bug 1627816
Alias: None
Product: Fedora
Classification: Fedora
Component: NetworkManager
Version: 30
Hardware: x86_64
OS: Linux
unspecified
urgent
Target Milestone: ---
Assignee: Lubomir Rintel
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-06-08 20:34 UTC by Matthew Levi
Modified: 2019-06-26 20:13 UTC (History)
10 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2019-06-26 20:13:00 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)

Description Matthew Levi 2019-06-08 20:34:52 UTC
I upgraded from Fedora 29 to 30.

I'm facing a very annoying network issue on Fedora 30: extreme inconsistency on connection speed!

My internet connection is relatively fast: I can download files approximately ~10MB/s. One example is Fedora 30 ISO (1.8G) in ~3 minutes.

wget https://download.fedoraproject.org/pub/fedora/linux/releases/30/Workstation/x86_64/iso/Fedora-Workstation-Live-x86_64-30-1.2.iso

If I run speedtest-cli this is what I get:

Retrieving speedtest.net configuration...
Testing from COPEL Telecom (138.204.24.191)...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by COPEL TELECOM (Curitiba) [10.42 km]: 8.223 ms
Testing download speed................................................................................
Download: 102.58 Mbit/s
Testing upload speed....................................................................................................
Upload: 105.77 Mbit/s

Not bad at all. So far so good.

However, for the majority of the websites out there, I can not even get 10% of that... that's pretty strange. For the below links I'm getting something around ~100KB/s to ~300KB/s. Yes, extremely slow!

Examples:

wget http://mirror.nl.leaseweb.net/speedtest/1000mb.bin
wget https://github.com/torvalds/linux/archive/master.zip
wget https://gitlab.com/inkscape/inkscape/-/archive/master/inkscape-master.zip

1) I tested the very same links links on the other servers I have, and they downloaded even +10MB/s. Super fast. Links are good. 2) The incredible thing is that I live loaded Fedora's 27/28/29 and I could get the super fast result: +10MB/s. Super fast. My network board is working well. By the way, if it was not working well, the Fedora ISO described above would not download at ~10MB/s.

Slow websites: mirror.nl.leaseweb.net, github.com, gitlab.com


02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
	Subsystem: Dell Device 0798
	Flags: fast devsel, IRQ 16
	I/O ports at d000 [size=256]
	Memory at df404000 (64-bit, non-prefetchable) [size=4K]
	Memory at df400000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: [40] Power Management version 3
	Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
	Capabilities: [70] Express Endpoint, MSI 01
	Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
	Capabilities: [100] Advanced Error Reporting
	Capabilities: [140] Virtual Channel
	Capabilities: [160] Device Serial Number 01-00-00-00-68-4c-e0-00
	Capabilities: [170] Latency Tolerance Reporting
	Capabilities: [178] L1 PM Substates
	Kernel modules: r8169


What could be the issue?
Why few websites Fedora 30 downloads extremely fast and for other websites Fedora 30 is sooooo slow?

Comment 1 Beniamino Galvani 2019-06-10 11:39:31 UTC
Can you please attach a packet capture of a slow download? First few seconds are enough.

What is the output of:

 ip l; ip a; ip r; ip n

?

Comment 2 Matthew Levi 2019-06-26 20:13:00 UTC
Uhmm, there are many other people complaining about the very same issue. I'm closing this ticket and any additional report/information should be posted in #1627816.


Bug 1627816 - 1Gb/s ethernet port is configured as 10Mb/s port on many different laptops, network-scripts work well
https://bugzilla.redhat.com/show_bug.cgi?id=1627816

Thanks for your support Beniamino.

*** This bug has been marked as a duplicate of bug 1627816 ***


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