有线网卡速度低

有线网卡速度低

操作系统:Fedora 32 内核版本:5.6.14-300.fc32.x86_64

我有一个板载 NIC,我无法获得 600MB 的总 ISP 速度提供商,几个月前这对我有用:

我做了一个速度测试:

https://www.speedtest.net/

我得到的结果:上下各230左右....

我打电话给 ISP 并发送了技术。在装有 Windows 的笔记本电脑中,他们验证速度为 600mb

我说嗯。我的板载网卡不见了,所以我决定再买一个:

TP-LINK TG-3269 千兆位 PCI 网络适配器并将其添加到 PCI 插槽

同样的结果,我没有得到我想要的结果:

这是一些终端输出:

lspci

02:06.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8169 PCI Gigabit Ethernet Controller (rev 10)

sudo lspci -v
02:06.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8169 PCI Gigabit Ethernet Controller (rev 10)
    Subsystem: Realtek Semiconductor Co., Ltd. RTL8169/8110 Family PCI Gigabit Ethernet NIC
    Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 20, NUMA node 0
    I/O ports at de00 [size=256]
    Memory at fdeff000 (32-bit, non-prefetchable) [size=256]
    Expansion ROM at fdf00000 [virtual] [disabled] [size=128K]
    Capabilities: [dc] Power Management version 2
    Kernel driver in use: r8169
    Kernel modules: r8169

sudo mii-tool enp2s6                                         
enp2s6: negotiated 1000baseT-HD flow-control, link ok

sudo mii-tool -v enp2s6
enp2s6: negotiated 1000baseT-HD flow-control, link ok
  product info: vendor 00:07:32, model 17 rev 3
  basic mode:   autonegotiation enabled
  basic status: autonegotiation complete, link ok
  capabilities: 1000baseT-HD 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
  advertising:  1000baseT-HD 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
  link partner: 1000baseT-HD 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control

ethtool -S enp2s6                                                 
NIC statistics:
     tx_packets: 678698
     rx_packets: 1674292
     tx_errors: 0
     rx_errors: 0
     rx_missed: 1352
     align_errors: 0
     tx_single_collisions: 0
     tx_multi_collisions: 0
     unicast: 1673746
     broadcast: 546
     multicast: 0
     tx_aborted: 0
     tx_underrun: 0

bat /sys/class/net/enp2s6/speed
1   │ 1000

bat /sys/class/net/enp2s6/duplex
1   │ full

ip add show

2: enp2s6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 60:e3:27:04:42:17 brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.155/24 brd 192.168.0.255 scope global dynamic noprefixroute enp2s6
       valid_lft 80510sec preferred_lft 80510sec
    inet6 fe80::a431:45ad:da43:453/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

sudo ethtool enp2s6      
Settings for enp2s6:
    Port: MII
    PHYAD: 0
    Transceiver: external
    Supports Wake-on: pumbg
    Wake-on: d
        Current message level: 0x00000033 (51)
                               drv probe ifdown ifup
    Link detected: yes

我没有想法了......

  1. 其余的位在哪里?
  2. 是我的机器吗?
  3. 这里发生了什么?

致以问候,并提前致谢...

答案1

cat /sys/class/net/enp2s6/duplex
1   │ full

根据您拥有全双工链路,那么 1000baseT-HD 是显示的问题mii-tool

rx_missed: 1352

这似乎解释了您面临的问题,丢失的接收数据包导致重新传输。也许你的系统很慢。您可以尝试启用 rx 中断合并,例如

ethtool -C enp2s6 rx-usecs 200

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