Linux基础命令---dmsg显示内核输出

-c

打印之后清除缓冲区

-r

打印raw信息

-s

设置缓冲区大小，默认16392

-n

指定记录信息的等级

[root@localhost dev]#dmesg -c                    //查看信息，之后删除缓冲区内容

。。。

e1000: eth0 NIC Link is Down

e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX

40:34:12.277699 timesync vgsvcTimeSyncWorker: Radical host time change: 40 928 048 000 000ns (HostNow=1 539 132 201 613 000 000 ns HostLast=1 539 091 273 565 000 000 ns)

40:34:22.278538 timesync vgsvcTimeSyncWorker: Radical guest time change: 40 932 566 440 000ns (GuestNow=1 539 132 211 613 841 000 ns GuestLast=1 539 091 279 047 401 000 ns fSetTimeLastLoop=true )

hrtimer: interrupt took 2772539 ns