The Linux top command

PS command can only current query the status of the process, the top command can view the status of the process in real-time, and the top command can follow the CPU, memory, execution time and other indicators to sort the process

[Email protected]_228 ~]# toptop- One: the: theUp -Days +: -,1User, load Average:0.21,0.26,0.16Tasks:113Total1Running111Sleeping,0Stopped1Zombiecpu (s):0.2%us,0.2%sy,0.0%ni,99.5%ID,0.0%wa,0.0%hi,0.2%si,0.0%stmem:2059568k Total, 1179992k used, 879576k Free, 15620k buffersswap:0k Total, 0k used, 0k Free, 48784k cached PID USER PR NI VIRT RES SHR S%CPU%MEM time+COMMAND 1667Root the   0 95308 1756  560S0.3  0.1   8:47.93redis-Server 2137Root the   0101m9584  844S0.3  0.5   4:45.38redis-Server 4009Root -   0228m 57m1892S0.3  2.9   +:14.25BEAM.SMP 1Root the   0 10360  168    -S0.0  0.0   0:02.77Init 2Root RT-5     0    0    0S0.0  0.0   0:26.09migration/0                                                                                                                           3Root the   +     0    0    0S0.0  0.0   0:02.80ksoftirqd/0                                                                                                                           4Root RT-5     0    0    0S0.0  0.0   0:00.00watchdog/0                                                                                                                            5Root RT-5     0    0    0S0.0  0.0   0:12.84migration/1                                                                                                                           6Root the   +     0    0    0S0.0  0.0   0:00.46ksoftirqd/1                                                                                                                           7Root RT-5     0    0    0S0.0  0.0   0:00.00watchdog/1                                                                                                                            8RootTen-5     0    0    0S0.0  0.0   0:03.63events/0                                                                                                                              9RootTen-5     0    0    0S0.0  0.0   0:00.54events/1                                                                                                                             TenRootTen-5     0    0    0S0.0  0.0   0:00.00Khelper  -Root One-5     0    0    0S0.0  0.0   0:00.00Kthread  +RootTen-5     0    0    0S0.0  0.0   0:00.30kblockd/0                                                                                                                             -RootTen-5     0    0    0S0.0  0.0   0:00.10kblockd/1                                                                                                                             theRoot --5     0    0    0S0.0  0.0   0:00.00Kacpid 133Root --5     0    0    0S0.0  0.0   0:00.00cqueue/0                                                                                                                            134Root the-5     0    0    0S0.0  0.0   0:00.00cqueue/1                                                                                                                            137RootTen-5     0    0    0S0.0  0.0   0:00.00KHUBD 139RootTen-5     0    0    0S0.0  0.0   0:00.00Kseriod 211Root the   0     0    0    0S0.0  0.0   0:00.02Khungtaskd

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A few useful information

%id Idle CPU Percentage

WA wait percent

　　

Custom Display content:

Press the "F" key in the top display screen

The default top is sorted by CPU usage, and the sort selection is entered by the capital letter "O"

Shortcut keys:

"P" is sorted by CPU usage

"M" is sorted by memory utilization

"N" is sorted by PID

"T" is sorted by CPU usage time

"K" kills a process

　　　　　　

The Linux top command