最後更新: 2021-09-18

目錄

• System Setting
• OpenWrt top

System Setting

Configure file

/etc/config/system

Hostname

config system
        option hostname 'OpenWrt'

Log

config system
    ...
    log_size  16                  # Default: 16. Unit: KiB, circular memory 
    log_type  circular            # Default circular. 另有選項 file, 它會 log 到 "log_file"
    log_file /var/log/messages

    log_ip <IP>       # log 到其他的 syslog 上
    log_port 512      # default port

ntp

config system
        ...
        option timezone 'HKT-8'

config timeserver 'ntp'
        list server '0.openwrt.pool.ntp.org'
        list server '1.openwrt.pool.ntp.org'
        list server '2.openwrt.pool.ntp.org'
        list server '3.openwrt.pool.ntp.org'
        option enable_server '1'

OpenWrt 's top

CPU:   0% usr   1% sys   0% nic  39% idle   0% io   0% irq  58% sirq

 * nic does not mean the network, but "nice"

/proc/stat

cpu  2691739 0 3224734 539739873 0 0 25054799 0 0 0
cpu0 2691739 0 3224734 539739873 0 0 25054799 0 0 0
intr 3295101952 0 0 1046234995 0 803958857 865580988 0 579327029 0 0 0 83 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ctxt 1718921015
btime 1620790192
processes 1746
procs_running 1
procs_blocked 0
softirq 2466000894 0 569346969 3447375 812285661 0 0 1044100039 0 118 36820732

"cpu" line aggregates the numbers in all of the other "cpuN" lines

• user: normal processes executing in user mode
• nice: niced processes executing in user mode
• system: processes executing in kernel mode
• idle: twiddling thumbs
• iowait: waiting for I/O to complete
• irq: servicing interrupts
• softirq: servicing softirqs

"intr" line gives counts of interrupts serviced since boot time

"ctxt" line gives the total number of context switches across all CPUs.

"btime" line gives the time at which the system booted, in seconds since the Unix epoch.

"processes" line gives the number of processes and threads created

"softirq" number of softirq for all CPUs.