linux - ethtool 可以提供 NIC 上当前的传入比特率吗

Question

Linux 的 ethtool 命令中是否有一个选项可以直接从 NIC 检索当前传入的比特率或每秒数据包数？

Answer 1

不是每秒数据包，而是整体 RX/TX。您可以围绕它编写一个脚本:

ethtool -S <interface>

例如，目前我的 wifi 很好:

[user@host ~]$ ethtool -S wlo1
NIC statistics:
     rx_packets: 992535
     rx_bytes: 1010899932
     rx_duplicates: 3206
     rx_fragments: 878057
     rx_dropped: 4367
     tx_packets: 363876
     tx_bytes: 49823636
     tx_filtered: 1
     tx_retry_failed: 6567
     tx_retries: 160017
     sta_state: 4
     txrate: 40500000
     rxrate: 54000000
     signal: 181
     channel: 0
     noise: 18446744073709551615
     ch_time: 18446744073709551615
     ch_time_busy: 18446744073709551615
     ch_time_ext_busy: 18446744073709551615
     ch_time_rx: 18446744073709551615
     ch_time_tx: 18446744073709551615

可以从以下位置提取相同的信息:

• /sys/class/net//statistics/rx_packets: number of packets received
• /sys/class/net//statistics/tx_packets: number of packets transmitted
• /sys/class/net//statistics/rx_bytes: number of bytes received
• /sys/class/net//statistics/tx_bytes: number of bytes transmitted
• /sys/class/net//statistics/rx_dropped: number of packets dropped while received
• /sys/class/net//statistics/tx_dropped: number of packets dropped while transmitted

另请参阅superuser.com以获得特定的实时解决方案。