리눅스 프로세스 관리하기

Posted on: 2018년 09월 13일 2018년 09월 13일
Categories: 강의자료, 리눅스

프로세스 명령어

ps -aux

whan@whan-VirtualBox:~$ ps -aux
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root         1  0.7  0.2 159828  9128 ?        Ss   22:57   0:02 /sbin/init spla
root         2  0.0  0.0      0     0 ?        S    22:57   0:00 [kthreadd]
root       544  0.0  0.4 178916 17240 ?        Ssl  22:57   0:00 /usr/bin/python
root       546  0.0  0.0  39716  3140 ?        Ss   22:57   0:00 /usr/sbin/cron
syslog     547  0.0  0.1 263036  4300 ?        Ssl  22:57   0:00 /usr/sbin/rsysl
avahi      619  0.0  0.0  47076   340 ?        S    22:57   0:00 avahi-daemon: c

whan@whan-VirtualBox:~$ ps -aux

USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND

root 1 0.7 0.2 159828 9128 ? Ss 22:57 0:02 /sbin/init spla

root 2 0.0 0.0 0 0 ? S 22:57 0:00 [kthreadd]

root 544 0.0 0.4 178916 17240 ? Ssl 22:57 0:00 /usr/bin/python

root 546 0.0 0.0 39716 3140 ? Ss 22:57 0:00 /usr/sbin/cron

syslog 547 0.0 0.1 263036 4300 ? Ssl 22:57 0:00 /usr/sbin/rsysl

avahi 619 0.0 0.0 47076 340 ? S 22:57 0:00 avahi-daemon: c

top : CPU를 가장 많이 점유하는 프로세스 순으로 출력

whan@whan-VirtualBox:~$ top
top - 23:03:42 up 6 min,  2 users,  load average: 0.18, 0.59, 0.38
Tasks: 204 total,   1 running, 171 sleeping,   0 stopped,   0 zombie
%Cpu(s):  0.3 us,  0.0 sy,  0.0 ni, 99.3 id,  0.0 wa,  0.0 hi,  0.3 si,  0.0 st
KiB Mem :  4039728 total,  2000696 free,  1031860 used,  1007172 buff/cache
KiB Swap:   483800 total,   483800 free,        0 used.  2731948 avail Mem

  PID USER      PR  NI    VIRT    RES    SHR S %CPU %MEM     TIME+ COMMAND
 1532 _apt      20   0   90500   8828   7852 S  1.0  0.2   0:01.45 http
 2354 whan      20   0   52476   4072   3444 R  0.7  0.1   0:00.14 top
   32 root      20   0       0      0      0 I  0.3  0.0   0:00.16 kworker/0:1
   83 root      20   0       0      0      0 I  0.3  0.0   0:00.09 kworker/u2:2
    1 root      20   0  159828   9152   6768 S  0.0  0.2   0:02.04 systemd
    2 root      20   0       0      0      0 S  0.0  0.0   0:00.00 kthreadd

whan@whan-VirtualBox:~$ top

top - 23:03:42 up 6 min, 2 users, load average: 0.18, 0.59, 0.38

Tasks: 204 total, 1 running, 171 sleeping, 0 stopped, 0 zombie

%Cpu(s): 0.3 us, 0.0 sy, 0.0 ni, 99.3 id, 0.0 wa, 0.0 hi, 0.3 si, 0.0 st

KiB Mem : 4039728 total, 2000696 free, 1031860 used, 1007172 buff/cache

KiB Swap: 483800 total, 483800 free, 0 used. 2731948 avail Mem

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND

1532 _apt 20 0 90500 8828 7852 S 1.0 0.2 0:01.45 http

2354 whan 20 0 52476 4072 3444 R 0.7 0.1 0:00.14 top

32 root 20 0 0 0 0 I 0.3 0.0 0:00.16 kworker/0:1

83 root 20 0 0 0 0 I 0.3 0.0 0:00.09 kworker/u2:2

1 root 20 0 159828 9152 6768 S 0.0 0.2 0:02.04 systemd

2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd

kill : 프로세스 종료

whan@whan-VirtualBox:~$ ps -aux
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root         1  0.3  0.2 159828  9152 ?        Ss   22:57   0:02 /sbin/init spla
root      2999  0.0  0.0      0     0 ?        S    23:06   0:00 [jfsSync]
whan      3897  4.7  1.1 827836 45584 ?        Ssl  23:07   0:00 /usr/lib/gnome-
whan      3933  0.6  0.1  30856  4544 pts/0    Ss+  23:07   0:00 bash
whan      3955  0.0  0.0  48064  3664 pts/1    R+   23:07   0:00 ps -aux
whan@whan-VirtualBox:~$ kill 3933

whan@whan-VirtualBox:~$ ps -aux

USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND

root 1 0.3 0.2 159828 9152 ? Ss 22:57 0:02 /sbin/init spla

root 2999 0.0 0.0 0 0 ? S 23:06 0:00 [jfsSync]

whan 3897 4.7 1.1 827836 45584 ? Ssl 23:07 0:00 /usr/lib/gnome-

whan 3933 0.6 0.1 30856 4544 pts/0 Ss+ 23:07 0:00 bash

whan 3955 0.0 0.0 48064 3664 pts/1 R+ 23:07 0:00 ps -aux

whan@whan-VirtualBox:~$ kill 3933

kill -l (L의 소문자)
kill 3933
kill -9 3933
kill -1 3933 (숫자 1)

프로세스 검색
1. ps -aux | more
2. ps -aux | grep bash
3. ps -ef | grep bash

whan0623

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