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Date:   Tue, 23 Apr 2019 09:37:59 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     netdev@...r.kernel.org
Subject: Fw: [Bug 203399] New: Slow internet download speed

Interesting regression, but not sure if there is enough data
to provide any clue as to how to diagnose the problem.


Begin forwarded message:

Date: Tue, 23 Apr 2019 13:54:23 +0000
From: bugzilla-daemon@...zilla.kernel.org
To: stephen@...workplumber.org
Subject: [Bug 203399] New: Slow internet download speed


https://bugzilla.kernel.org/show_bug.cgi?id=203399

            Bug ID: 203399
           Summary: Slow internet download speed
           Product: Networking
           Version: 2.5
    Kernel Version: since 4.* to 5.0.8
          Hardware: ARM
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: IPV4
          Assignee: stephen@...workplumber.org
          Reporter: kraisler87@...dex.ru
        Regression: No

I use Linux since 4.* kernel version and internet download speed always slower
than on Windows 7/10. 
On Windows, speed about 90 mb/s.
On Linux, speed about 30 - 50 mb/s.

If download  via Torrent, speed is good: about 90 mb/s. But via other apps (all
web browsers, skype and other) : speed about 30 - 50 mb/s. I tried a lot of
Linux dists (ubuntu 14 to 18, KDE neon, Mint, Deepin and other). The bug is
same.

Fix it finally!


lspci -k | more
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD/ATI] RD9x0/RX980 Host
Bri
dge (rev 02)
        Subsystem: Micro-Star International Co., Ltd. [MSI] RD9x0/RX980 Host
Bri
dge
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD/ATI] RD890S/RD990 I/O Memory
Ma
nagement Unit (IOMMU)
        Subsystem: Micro-Star International Co., Ltd. [MSI] RD890S/RD990 I/O
Mem
ory Management Unit (IOMMU)
00:02.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] RD890/RD9x0/RX980
PCI
 to PCI bridge (PCI Express GFX port 0)
        Kernel driver in use: pcieport
00:09.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] RD890/RD9x0/RX980
PCI
 to PCI bridge (PCI Express GPP Port 4)
        Kernel driver in use: pcieport
00:0a.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] RD890/RD9x0/RX980
PCI
 to PCI bridge (PCI Express GPP Port 5)
        Kernel driver in use: pcieport
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x
0 SATA Controller [IDE mode] (rev 40)
        Subsystem: Micro-Star International Co., Ltd. [MSI] SB7x0/SB8x0/SB9x0
SA
TA Controller [IDE mode]
        Kernel driver in use: ahci
        Kernel modules: ahci
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0
 USB OHCI0 Controller
        Subsystem: Micro-Star International Co., Ltd. [MSI] SB7x0/SB8x0/SB9x0
US
B OHCI0 Controller
        Kernel driver in use: ohci-pci
00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0
 USB EHCI Controller
        Subsystem: Micro-Star International Co., Ltd. [MSI] SB7x0/SB8x0/SB9x0
US
B EHCI Controller
        Kernel driver in use: ehci-pci
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0
 USB OHCI0 Controller
        Subsystem: Micro-Star International Co., Ltd. [MSI] SB7x0/SB8x0/SB9x0
US
B OHCI0 Controller
        Kernel driver in use: ohci-pci
00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0
 USB EHCI Controller
        Subsystem: Micro-Star International Co., Ltd. [MSI] SB7x0/SB8x0/SB9x0
US
B EHCI Controller
        Kernel driver in use: ehci-pci
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus Controller
(re
v 42)
        Subsystem: Micro-Star International Co., Ltd. [MSI] SBx00 SMBus
Controll
er
        Kernel driver in use: piix4_smbus
        Kernel modules: i2c_piix4, sp5100_tco
00:14.1 IDE interface: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 
IDE Controller (rev 40)
        Subsystem: Micro-Star International Co., Ltd. [MSI] SB7x0/SB8x0/SB9x0
ID
E Controller
        Kernel driver in use: pata_atiixp
        Kernel modules: pata_atiixp, pata_acpi
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia
(Intel
 HDA) (rev 40)
        Subsystem: Micro-Star International Co., Ltd. [MSI] SBx00 Azalia (Intel 
HDA)
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0
LPC
 host controller (rev 40)
        Subsystem: Micro-Star International Co., Ltd. [MSI] SB7x0/SB8x0/SB9x0
LP
C host controller
00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 PCI to PCI
Brid
ge (rev 40)
00:14.5 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0
 USB OHCI2 Controller
        Subsystem: Micro-Star International Co., Ltd. [MSI] SB7x0/SB8x0/SB9x0
US
B OHCI2 Controller
        Kernel driver in use: ohci-pci
00:15.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB700/SB800/SB900
PCI
 to PCI bridge (PCIE port 0)
        Kernel driver in use: pcieport
00:16.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0
 USB OHCI0 Controller
        Subsystem: Micro-Star International Co., Ltd. [MSI] SB7x0/SB8x0/SB9x0
US
B OHCI0 Controller
        Kernel driver in use: ohci-pci
00:16.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0
 USB EHCI Controller
        Subsystem: Micro-Star International Co., Ltd. [MSI] SB7x0/SB8x0/SB9x0
US
B EHCI Controller
        Kernel driver in use: ehci-pci
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h Processor
Fun
ction 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h Processor
Fun
ction 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h Processor
Fun
ction 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h Processor
Fun
ction 3
        Kernel driver in use: k10temp
        Kernel modules: k10temp
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h Processor
Fun
ction 4
        Kernel driver in use: fam15h_power
        Kernel modules: fam15h_power
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h Processor
Fun
ction 5
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Junipe
r PRO [Radeon HD 6750]
        Subsystem: ASUSTeK Computer Inc. Juniper PRO [Radeon HD 6750]
        Kernel driver in use: radeon
        Kernel modules: radeon
01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Juniper HDMI Audio 
[Radeon HD 5700 Series]
        Subsystem: ASUSTeK Computer Inc. Juniper HDMI Audio [Radeon HD 5700
Seri
es]
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel
02:00.0 USB controller: Renesas Technology Corp. uPD720202 USB 3.0 Host
Controll
er (rev 02)
        Subsystem: Micro-Star International Co., Ltd. [MSI] uPD720202 USB 3.0
Ho
st Controller
        Kernel driver in use: xhci_hcd
03:00.0 USB controller: Renesas Technology Corp. uPD720202 USB 3.0 Host
Controll
er (rev 02)
        Subsystem: Micro-Star International Co., Ltd. [MSI] uPD720202 USB 3.0
Ho
st Controller
        Kernel driver in use: xhci_hcd
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411
P
CI Express Gigabit Ethernet Controller (rev 06)
        Subsystem: Micro-Star International Co., Ltd. [MSI] RTL8111/8168/8411
PC
I Express Gigabit Ethernet Controller
        Kernel driver in use: r8169
        Kernel modules: r8169

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