Ubuntu 16 通过以太网的互联网速度较慢

Ubuntu 16 通过以太网的互联网速度较慢

当前正在运行带有 Ubuntu 16 的桌面。我注意到,在使用 Ubuntu 时,我的互联网速度比在同一台桌面上启动 Windows 或使用我的 Macbook 时慢。我的桌面通过以太网电缆连接到路由器,而 Macbook 通过 Wi-Fi 连接。

我可以研究哪些可能性来解决这个问题?

编辑:更新!查看我的以太网时,我注意到它是 Realtek,正在使用内核驱动程序 r8169。在其他地方阅读时,我发现这些驱动程序是问题所在。我看到 realtek 提供了驱动程序,但这些是 Linux 内核 3.X 和 2.X,而 Ubuntu 16 使用的是 Linux 4 内核。

EDIT2:这里运行诊断脚本是我的输出

########## wireless info START ##########

Report from: 07 Aug 2016 11:20 PDT -0700

Booted last: 07 Aug 2016 00:00 PDT -0700

Script from: 08 Jul 2016 02:16 UTC +0000

##### release ###########################

Distributor ID: Ubuntu
Description:    Ubuntu 16.04.1 LTS
Release:    16.04
Codename:   xenial

##### kernel ############################

Linux 4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:07:12 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

Parameters: ro, quiet, splash, vt.handoff=7

##### desktop ###########################

Ubuntu

##### lspci #############################

02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 09)
    Subsystem: ASUSTeK Computer Inc. P8 series motherboard [1043:8505]
    Kernel driver in use: r8168

##### lsusb #############################

Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 003: ID 045e:00db Microsoft Corp. Natural Ergonomic Keyboard 4000 V1.0
Bus 005 Device 002: ID 1038:1710 SteelSeries ApS 
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 011 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 010 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

##### PCMCIA card info ##################

##### rfkill ############################

##### lsmod #############################

eeepc_wmi              16384  0
asus_wmi               28672  1 eeepc_wmi
mxm_wmi                16384  0
sparse_keymap          16384  1 asus_wmi
video                  40960  1 asus_wmi
wmi                    20480  2 mxm_wmi,asus_wmi

##### interfaces ########################

auto lo
iface lo inet loopback

##### ifconfig ##########################

enp2s0    Link encap:Ethernet  HWaddr <MAC 'enp2s0' [IF1]>  
          inet addr:192.168.1.5  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::9196:f58b:5175:e8dd/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:26704 errors:0 dropped:0 overruns:0 frame:0
          TX packets:26853 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:24784362 (24.7 MB)  TX bytes:2829572 (2.8 MB)
          Interrupt:43 Base address:0x8000 

##### iwconfig ##########################

enp2s0    no wireless extensions.

lo        no wireless extensions.

##### route #############################

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.1.1     0.0.0.0         UG    100    0        0 enp2s0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 enp2s0
192.168.1.0     0.0.0.0         255.255.255.0   U     100    0        0 enp2s0

##### resolv.conf #######################

nameserver 127.0.1.1

##### network managers ##################

Installed:

    NetworkManager

Running:

root      1955     1  0 10:57 ?        00:00:00 /usr/sbin/NetworkManager --no-daemon

##### NetworkManager info ###############

GENERAL.DEVICE:                         enp2s0
GENERAL.TYPE:                           ethernet
GENERAL.NM-TYPE:                        NMDeviceEthernet
GENERAL.VENDOR:                         Realtek Semiconductor Co., Ltd.
GENERAL.PRODUCT:                        RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (P8 series motherboard)
GENERAL.DRIVER:                         r8168
GENERAL.DRIVER-VERSION:                 8.041.00-NAPI
GENERAL.FIRMWARE-VERSION:               
GENERAL.HWADDR:                         <MAC 'enp2s0' [IF1]>
GENERAL.MTU:                            1500
GENERAL.STATE:                          100 (connected)
GENERAL.REASON:                         0 (No reason given)
GENERAL.UDI:                            /sys/devices/pci0000:00/0000:00:04.0/0000:02:00.0/net/enp2s0
GENERAL.IP-IFACE:                       enp2s0
GENERAL.IS-SOFTWARE:                    no
GENERAL.NM-MANAGED:                     yes
GENERAL.AUTOCONNECT:                    yes
GENERAL.FIRMWARE-MISSING:               no
GENERAL.NM-PLUGIN-MISSING:              no
GENERAL.PHYS-PORT-ID:                   --
GENERAL.CONNECTION:                     Wired connection 1
GENERAL.CON-UUID:                       17d1f373-9fb8-44e1-ba4f-803dc84587e4
GENERAL.CON-PATH:                       /org/freedesktop/NetworkManager/ActiveConnection/0
GENERAL.METERED:                        no (guessed)
CAPABILITIES.CARRIER-DETECT:            yes
CAPABILITIES.SPEED:                     10 Mb/s
CAPABILITIES.IS-SOFTWARE:               no
WIRED-PROPERTIES.CARRIER:               on
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{0}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]:   17d1f373-9fb8-44e1-ba4f-803dc84587e4 | Wired connection 1
IP4.ADDRESS[1]:                         192.168.1.5/24
IP4.GATEWAY:                            192.168.1.1
IP4.ROUTE[1]:                           dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.DNS[1]:                             192.168.1.1
IP4.DNS[2]:                             75.75.76.76
DHCP4.OPTION[1]:                        requested_routers = 1
DHCP4.OPTION[2]:                        requested_domain_search = 1
DHCP4.OPTION[3]:                        requested_time_offset = 1
DHCP4.OPTION[4]:                        requested_domain_name = 1
DHCP4.OPTION[5]:                        requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[6]:                        requested_broadcast_address = 1
DHCP4.OPTION[7]:                        requested_netbios_scope = 1
DHCP4.OPTION[8]:                        requested_wpad = 1
DHCP4.OPTION[9]:                        next_server = 0.0.0.0
DHCP4.OPTION[10]:                       expiry = 1470679063
DHCP4.OPTION[11]:                       requested_interface_mtu = 1
DHCP4.OPTION[12]:                       requested_subnet_mask = 1
DHCP4.OPTION[13]:                       dhcp_lease_time = 86400
DHCP4.OPTION[14]:                       dhcp_message_type = 5
DHCP4.OPTION[15]:                       ip_address = 192.168.1.5
DHCP4.OPTION[16]:                       requested_static_routes = 1
DHCP4.OPTION[17]:                       requested_domain_name_servers = 1
DHCP4.OPTION[18]:                       routers = 192.168.1.1
DHCP4.OPTION[19]:                       broadcast_address = 192.168.1.255
DHCP4.OPTION[20]:                       requested_ntp_servers = 1
DHCP4.OPTION[21]:                       requested_netbios_name_servers = 1
DHCP4.OPTION[22]:                       domain_name_servers = 192.168.1.1 75.75.76.76
DHCP4.OPTION[23]:                       requested_ms_classless_static_routes = 1
DHCP4.OPTION[24]:                       subnet_mask = 255.255.255.0
DHCP4.OPTION[25]:                       network_number = 192.168.1.0
DHCP4.OPTION[26]:                       requested_host_name = 1
DHCP4.OPTION[27]:                       dhcp_server_identifier = 192.168.1.1
IP6.ADDRESS[1]:                         fe80::9196:f58b:5175:e8dd/64
IP6.GATEWAY:                            

##### NetworkManager.state ##############

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true

##### NetworkManager.conf ###############

[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

[ifupdown]
managed=false

##### NetworkManager profiles ###########

##### iw reg get ########################

Region: America/Los_Angeles (based on set time zone)

country 00: DFS-UNSET
    (2402 - 2472 @ 40), (6, 20), (N/A)
    (2457 - 2482 @ 40), (6, 20), (N/A), PASSIVE-SCAN
    (2474 - 2494 @ 20), (6, 20), (N/A), NO-OFDM, PASSIVE-SCAN
    (5170 - 5250 @ 160), (6, 20), (N/A), PASSIVE-SCAN
    (5250 - 5330 @ 160), (6, 20), (0 ms), DFS, PASSIVE-SCAN
    (5490 - 5730 @ 160), (6, 20), (0 ms), DFS, PASSIVE-SCAN
    (5735 - 5835 @ 80), (6, 20), (N/A), PASSIVE-SCAN
    (57240 - 63720 @ 2160), (N/A, 0), (N/A)

##### iwlist channels ###################

enp2s0    no frequency information.

lo        no frequency information.

##### iwlist scan #######################

enp2s0    Interface doesn't support scanning.

lo        Interface doesn't support scanning.

##### module infos ######################

##### module parameters #################

##### /etc/modules ######################

##### modprobe options ##################

[/etc/modprobe.d/amd64-microcode-blacklist.conf]
blacklist microcode

[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci

[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac

[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off

[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211

[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en

[/etc/modprobe.d/r8168-dkms.conf]
alias   pci:v00001186d00004300sv00001186sd00004B10bc*sc*i*  r8168
alias   pci:v000010ECd00008168sv*sd*bc*sc*i*            r8168

##### rc.local ##########################

exit 0

##### pm-utils ##########################

##### udev rules ########################

##### dmesg #############################

[    3.928341] IPv6: ADDRCONF(NETDEV_UP): enp2s0: link is not ready
[    3.928769] enp2s0: 0xffffc90000e78000, <MAC 'enp2s0' [IF1]>, IRQ 43
[    4.011951] IPv6: ADDRCONF(NETDEV_UP): enp2s0: link is not ready
[    6.024208] r8168: enp2s0: link up
[    6.024512] IPv6: ADDRCONF(NETDEV_CHANGE): enp2s0: link becomes ready

########## wireless info END ############

答案1

我通过简单地恢复到 Ubuntu 14.04 解决了上述问题。

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