ps
简介
ps（processes status）是Unix / Linux上的一个实用程序，用于查看系统上正在运行的进程的信息。ps命令默认安装，即使最小化安装也会有这个命令。ps命令从/ proc文件系统中的虚拟文件中读取信息。 ps命令是系统管理的重要工具之一，专门用于进程监视，以帮助程序开发了解Linux系统上的最新情况。
请注意，ps生成带有标题行的输出，表示每列信息的含义。
用法演示
显示当前shell下所有进程
ps不带任何参数
[root@localhost proc]# ps PID TTY TIME CMD 1309 pts/0 00:00:00 bash 3191 pts/0 00:00:00 ps
上面这种显示进程的方式，列数较少，可看的信息有限。
USER = user owning the process PID = process ID of the process %CPU = It is the CPU time used divided by the time the process has been running. %MEM = ratio of the process’s resident set size to the physical memory on the machine VSZ = virtual memory usage of entire process (in KiB) RSS = resident set size, the non-swapped physical memory that a task has used (in KiB) TTY = controlling tty (terminal) STAT = multi-character process state START = starting time or date of the process TIME = cumulative CPU time COMMAND = command with all its arguments
ps -f 或者 -F可以多显示几列。其中-F显示的能更多些
显示Linux系统下所有活跃进程
ps -A 或 ps -e
[root@localhost proc]# ps -e PID TTY TIME CMD 1 ? 00:00:01 systemd 2 ? 00:00:00 kthreadd 3 ? 00:00:00 ksoftirqd/0 5 ? 00:00:00 kworker/0:0H 6 ? 00:00:00 kworker/u256:0 7 ? 00:00:00 migration/0 8 ? 00:00:00 rcu_bh 9 ? 00:00:00 rcu_sched 10 ? 00:00:00 lru-add-drain 11 ? 00:00:00 watchdog/0 12 ? 00:00:00 watchdog/1 13 ? 00:00:00 migration/1 14 ? 00:00:00 ksoftirqd/1 16 ? 00:00:00 kworker/1:0H 17 ? 00:00:00 watchdog/2 18 ? 00:00:00 migration/2 19 ? 00:00:00 ksoftirqd/2 21 ? 00:00:00 kworker/2:0H 22 ? 00:00:00 watchdog/3 23 ? 00:00:00 migration/3 24 ? 00:00:00 ksoftirqd/3 26 ? 00:00:00 kworker/3:0H 28 ? 00:00:00 kdevtmpfs 29 ? 00:00:00 netns 30 ? 00:00:00 khungtaskd 31 ? 00:00:00 writeback 32 ? 00:00:00 kintegrityd 33 ? 00:00:00 bioset 34 ? 00:00:00 kblockd 35 ? 00:00:00 md 36 ? 00:00:00 edac-poller 38 ? 00:00:00 kworker/1:1 43 ? 00:00:00 kswapd0 44 ? 00:00:00 ksmd 45 ? 00:00:00 khugepaged 46 ? 00:00:00 crypto 54 ? 00:00:00 kthrotld 56 ? 00:00:00 kmpath_rdacd 57 ? 00:00:00 kaluad 58 ? 00:00:00 kpsmoused 59 ? 00:00:01 kworker/0:2 60 ? 00:00:00 ipv6_addrconf 73 ? 00:00:00 deferwq 105 ? 00:00:00 kauditd 290 ? 00:00:00 mpt_poll_0 292 ? 00:00:00 ata_sff 293 ? 00:00:00 mpt/0 300 ? 00:00:00 scsi_eh_0 301 ? 00:00:00 scsi_tmf_0 302 ? 00:00:00 kworker/u256:2 303 ? 00:00:00 scsi_eh_1 304 ? 00:00:00 scsi_tmf_1 305 ? 00:00:00 scsi_eh_2 306 ? 00:00:00 scsi_tmf_2 309 ? 00:00:00 ttm_swap 310 ? 00:00:00 irq/16-vmwgfx 322 ? 00:00:00 kworker/3:2 330 ? 00:00:00 kworker/1:2 387 ? 00:00:00 kdmflush 388 ? 00:00:00 bioset 398 ? 00:00:00 kdmflush 400 ? 00:00:00 bioset 413 ? 00:00:00 bioset 414 ? 00:00:00 xfsalloc 415 ? 00:00:00 xfs_mru_cache 416 ? 00:00:00 xfs-buf/dm-0 417 ? 00:00:00 xfs-data/dm-0 418 ? 00:00:00 xfs-conv/dm-0 419 ? 00:00:00 xfs-cil/dm-0 420 ? 00:00:00 xfs-reclaim/dm- 421 ? 00:00:00 xfs-log/dm-0 422 ? 00:00:00 xfs-eofblocks/d 423 ? 00:00:00 xfsaild/dm-0 424 ? 00:00:00 kworker/0:1H 493 ? 00:00:00 systemd-journal 520 ? 00:00:00 lvmetad 529 ? 00:00:00 systemd-udevd 548 ? 00:00:00 nfit 613 ? 00:00:00 xfs-buf/sda1 614 ? 00:00:00 xfs-data/sda1 615 ? 00:00:00 xfs-conv/sda1 616 ? 00:00:00 xfs-cil/sda1 617 ? 00:00:00 xfs-reclaim/sda 618 ? 00:00:00 xfs-log/sda1 619 ? 00:00:00 xfs-eofblocks/s 620 ? 00:00:00 xfsaild/sda1 623 ? 00:00:00 kdmflush 624 ? 00:00:00 bioset 631 ? 00:00:00 xfs-buf/dm-2 632 ? 00:00:00 xfs-data/dm-2 633 ? 00:00:00 xfs-conv/dm-2 634 ? 00:00:00 xfs-cil/dm-2 635 ? 00:00:00 xfs-reclaim/dm- 636 ? 00:00:00 xfs-log/dm-2 637 ? 00:00:00 xfs-eofblocks/d 638 ? 00:00:00 xfsaild/dm-2 660 ? 00:00:00 auditd 683 ? 00:00:00 dbus-daemon 686 ? 00:00:00 polkitd 688 ? 00:00:00 irqbalance 689 ? 00:00:00 systemd-logind 693 ? 00:00:00 crond 698 ? 00:00:00 login 705 ? 00:00:00 firewalld 707 ? 00:00:00 NetworkManager 754 ? 00:00:00 kworker/2:1H 826 ? 00:00:00 kworker/3:1H 838 ? 00:00:00 dhclient 1021 ? 00:00:00 tuned 1022 ? 00:00:00 sshd 1023 ? 00:00:00 rsyslogd 1170 ? 00:00:00 master 1176 ? 00:00:00 pickup 1177 ? 00:00:00 qmgr 1284 tty1 00:00:00 bash 1299 ? 00:00:00 kworker/1:1H 1305 ? 00:00:00 sshd 1309 pts/0 00:00:00 bash 1455 ? 00:00:00 kworker/3:3 1477 ? 00:00:00 memcached 2198 ? 00:00:00 kworker/2:0 2321 ? 00:00:00 kworker/0:0 2894 ? 00:00:00 kworker/2:2 3163 ? 00:00:00 kworker/2:1 3331 ? 00:00:00 kworker/0:1 3346 pts/0 00:00:00 ps [root@localhost proc]# ps -A PID TTY TIME CMD 1 ? 00:00:01 systemd 2 ? 00:00:00 kthreadd 3 ? 00:00:00 ksoftirqd/0 5 ? 00:00:00 kworker/0:0H 6 ? 00:00:00 kworker/u256:0 7 ? 00:00:00 migration/0 8 ? 00:00:00 rcu_bh 9 ? 00:00:00 rcu_sched 10 ? 00:00:00 lru-add-drain 11 ? 00:00:00 watchdog/0 12 ? 00:00:00 watchdog/1 13 ? 00:00:00 migration/1 14 ? 00:00:00 ksoftirqd/1 16 ? 00:00:00 kworker/1:0H 17 ? 00:00:00 watchdog/2 18 ? 00:00:00 migration/2 19 ? 00:00:00 ksoftirqd/2 21 ? 00:00:00 kworker/2:0H 22 ? 00:00:00 watchdog/3 23 ? 00:00:00 migration/3 24 ? 00:00:00 ksoftirqd/3 26 ? 00:00:00 kworker/3:0H 28 ? 00:00:00 kdevtmpfs 29 ? 00:00:00 netns 30 ? 00:00:00 khungtaskd 31 ? 00:00:00 writeback 32 ? 00:00:00 kintegrityd 33 ? 00:00:00 bioset 34 ? 00:00:00 kblockd 35 ? 00:00:00 md 36 ? 00:00:00 edac-poller 38 ? 00:00:00 kworker/1:1 43 ? 00:00:00 kswapd0 44 ? 00:00:00 ksmd 45 ? 00:00:00 khugepaged 46 ? 00:00:00 crypto 54 ? 00:00:00 kthrotld 56 ? 00:00:00 kmpath_rdacd 57 ? 00:00:00 kaluad 58 ? 00:00:00 kpsmoused 59 ? 00:00:01 kworker/0:2 60 ? 00:00:00 ipv6_addrconf 73 ? 00:00:00 deferwq 105 ? 00:00:00 kauditd 290 ? 00:00:00 mpt_poll_0 292 ? 00:00:00 ata_sff 293 ? 00:00:00 mpt/0 300 ? 00:00:00 scsi_eh_0 301 ? 00:00:00 scsi_tmf_0 302 ? 00:00:00 kworker/u256:2 303 ? 00:00:00 scsi_eh_1 304 ? 00:00:00 scsi_tmf_1 305 ? 00:00:00 scsi_eh_2 306 ? 00:00:00 scsi_tmf_2 309 ? 00:00:00 ttm_swap 310 ? 00:00:00 irq/16-vmwgfx 322 ? 00:00:00 kworker/3:2 330 ? 00:00:00 kworker/1:2 387 ? 00:00:00 kdmflush 388 ? 00:00:00 bioset 398 ? 00:00:00 kdmflush 400 ? 00:00:00 bioset 413 ? 00:00:00 bioset 414 ? 00:00:00 xfsalloc 415 ? 00:00:00 xfs_mru_cache 416 ? 00:00:00 xfs-buf/dm-0 417 ? 00:00:00 xfs-data/dm-0 418 ? 00:00:00 xfs-conv/dm-0 419 ? 00:00:00 xfs-cil/dm-0 420 ? 00:00:00 xfs-reclaim/dm- 421 ? 00:00:00 xfs-log/dm-0 422 ? 00:00:00 xfs-eofblocks/d 423 ? 00:00:00 xfsaild/dm-0 424 ? 00:00:00 kworker/0:1H 493 ? 00:00:00 systemd-journal 520 ? 00:00:00 lvmetad 529 ? 00:00:00 systemd-udevd 548 ? 00:00:00 nfit 613 ? 00:00:00 xfs-buf/sda1 614 ? 00:00:00 xfs-data/sda1 615 ? 00:00:00 xfs-conv/sda1 616 ? 00:00:00 xfs-cil/sda1 617 ? 00:00:00 xfs-reclaim/sda 618 ? 00:00:00 xfs-log/sda1 619 ? 00:00:00 xfs-eofblocks/s 620 ? 00:00:00 xfsaild/sda1 623 ? 00:00:00 kdmflush 624 ? 00:00:00 bioset 631 ? 00:00:00 xfs-buf/dm-2 632 ? 00:00:00 xfs-data/dm-2 633 ? 00:00:00 xfs-conv/dm-2 634 ? 00:00:00 xfs-cil/dm-2 635 ? 00:00:00 xfs-reclaim/dm- 636 ? 00:00:00 xfs-log/dm-2 637 ? 00:00:00 xfs-eofblocks/d 638 ? 00:00:00 xfsaild/dm-2 660 ? 00:00:00 auditd 683 ? 00:00:00 dbus-daemon 686 ? 00:00:00 polkitd 688 ? 00:00:00 irqbalance 689 ? 00:00:00 systemd-logind 693 ? 00:00:00 crond 698 ? 00:00:00 login 705 ? 00:00:00 firewalld 707 ? 00:00:00 NetworkManager 754 ? 00:00:00 kworker/2:1H 826 ? 00:00:00 kworker/3:1H 838 ? 00:00:00 dhclient 1021 ? 00:00:00 tuned 1022 ? 00:00:00 sshd 1023 ? 00:00:00 rsyslogd 1170 ? 00:00:00 master 1176 ? 00:00:00 pickup 1177 ? 00:00:00 qmgr 1284 tty1 00:00:00 bash 1299 ? 00:00:00 kworker/1:1H 1305 ? 00:00:00 sshd 1309 pts/0 00:00:00 bash 1455 ? 00:00:00 kworker/3:3 1477 ? 00:00:00 memcached 2198 ? 00:00:00 kworker/2:0 2321 ? 00:00:00 kworker/0:0 2894 ? 00:00:00 kworker/2:2 3163 ? 00:00:00 kworker/2:1 3331 ? 00:00:00 kworker/0:1 3350 pts/0 00:00:00 ps
BSD风格显示进程
ps au 或者 ps aux
2这有少许差别
a = show processes for all users
u = display the process's user/owner
x = also show you all processes, not just ones attached to a terminal. This will include processes such as services like crond, upowerd, etc.
从历史上看，BSD和AT＆T开发了不兼容的ps版本。 参数选项前没有-的是BSD风格，而选项带有-的是AT＆T Unix风格。 最重要的是，Linux开发了一个支持这两种样式的版本，然后添加了第三种样式，其中的选项以--开头。
[root@localhost proc]# ps au USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1284 0.0 0.0 115432 1984 tty1 Ss+ 09:02 0:00 -bash root 1309 0.0 0.0 115436 2072 pts/0 Ss 09:04 0:00 -bash root 4191 0.0 0.0 155324 1856 pts/0 R+ 10:08 0:00 ps au [root@localhost proc]# ps aux USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1 0.0 0.1 193468 6596 ? Ss 09:02 0:01 /usr/lib/systemd/systemd --switched-root --syste root 2 0.0 0.0 0 0 ? S 09:02 0:00 [kthreadd] root 3 0.0 0.0 0 0 ? S 09:02 0:00 [ksoftirqd/0] root 5 0.0 0.0 0 0 ? S< 09:02 0:00 [kworker/0:0H] root 6 0.0 0.0 0 0 ? S 09:02 0:00 [kworker/u256:0] root 7 0.0 0.0 0 0 ? S 09:02 0:00 [migration/0] root 8 0.0 0.0 0 0 ? S 09:02 0:00 [rcu_bh] root 9 0.0 0.0 0 0 ? S 09:02 0:00 [rcu_sched] root 10 0.0 0.0 0 0 ? S< 09:02 0:00 [lru-add-drain] root 11 0.0 0.0 0 0 ? S 09:02 0:00 [watchdog/0] root 12 0.0 0.0 0 0 ? S 09:02 0:00 [watchdog/1] root 13 0.0 0.0 0 0 ? S 09:02 0:00 [migration/1] root 14 0.0 0.0 0 0 ? S 09:02 0:00 [ksoftirqd/1] root 16 0.0 0.0 0 0 ? S< 09:02 0:00 [kworker/1:0H] root 17 0.0 0.0 0 0 ? S 09:02 0:00 [watchdog/2] root 18 0.0 0.0 0 0 ? S 09:02 0:00 [migration/2] root 19 0.0 0.0 0 0 ? S 09:02 0:00 [ksoftirqd/2] root 21 0.0 0.0 0 0 ? S< 09:02 0:00 [kworker/2:0H] root 22 0.0 0.0 0 0 ? S 09:02 0:00 [watchdog/3] root 23 0.0 0.0 0 0 ? S 09:02 0:00 [migration/3] root 24 0.0 0.0 0 0 ? S 09:02 0:00 [ksoftirqd/3] root 26 0.0 0.0 0 0 ? S< 09:02 0:00 [kworker/3:0H] root 28 0.0 0.0 0 0 ? S 09:02 0:00 [kdevtmpfs] root 29 0.0 0.0 0 0 ? S< 09:02 0:00 [netns] root 30 0.0 0.0 0 0 ? S 09:02 0:00 [khungtaskd] root 31 0.0 0.0 0 0 ? S< 09:02 0:00 [writeback] root 32 0.0 0.0 0 0 ? S< 09:02 0:00 [kintegrityd] root 33 0.0 0.0 0 0 ? S< 09:02 0:00 [bioset] root 34 0.0 0.0 0 0 ? S< 09:02 0:00 [kblockd] root 35 0.0 0.0 0 0 ? S< 09:02 0:00 [md] root 36 0.0 0.0 0 0 ? S< 09:02 0:00 [edac-poller] root 38 0.0 0.0 0 0 ? R 09:02 0:00 [kworker/1:1] root 43 0.0 0.0 0 0 ? S 09:02 0:00 [kswapd0] root 44 0.0 0.0 0 0 ? SN 09:02 0:00 [ksmd] root 45 0.0 0.0 0 0 ? SN 09:02 0:00 [khugepaged] root 46 0.0 0.0 0 0 ? S< 09:02 0:00 [crypto] root 54 0.0 0.0 0 0 ? S< 09:02 0:00 [kthrotld] root 56 0.0 0.0 0 0 ? S< 09:02 0:00 [kmpath_rdacd] root 57 0.0 0.0 0 0 ? S< 09:02 0:00 [kaluad] root 58 0.0 0.0 0 0 ? S< 09:02 0:00 [kpsmoused] root 59 0.0 0.0 0 0 ? S 09:02 0:01 [kworker/0:2] root 60 0.0 0.0 0 0 ? S< 09:02 0:00 [ipv6_addrconf] root 73 0.0 0.0 0 0 ? S< 09:02 0:00 [deferwq] root 105 0.0 0.0 0 0 ? S 09:02 0:00 [kauditd] root 290 0.0 0.0 0 0 ? S< 09:02 0:00 [mpt_poll_0] root 292 0.0 0.0 0 0 ? S< 09:02 0:00 [ata_sff] root 293 0.0 0.0 0 0 ? S< 09:02 0:00 [mpt/0] root 300 0.0 0.0 0 0 ? S 09:02 0:00 [scsi_eh_0] root 301 0.0 0.0 0 0 ? S< 09:02 0:00 [scsi_tmf_0] root 302 0.0 0.0 0 0 ? S 09:02 0:00 [kworker/u256:2] root 303 0.0 0.0 0 0 ? S 09:02 0:00 [scsi_eh_1] root 304 0.0 0.0 0 0 ? S< 09:02 0:00 [scsi_tmf_1] root 305 0.0 0.0 0 0 ? S 09:02 0:00 [scsi_eh_2] root 306 0.0 0.0 0 0 ? S< 09:02 0:00 [scsi_tmf_2] root 309 0.0 0.0 0 0 ? S< 09:02 0:00 [ttm_swap] root 310 0.0 0.0 0 0 ? S 09:02 0:00 [irq/16-vmwgfx] root 322 0.0 0.0 0 0 ? S 09:02 0:00 [kworker/3:2] root 330 0.0 0.0 0 0 ? S 09:02 0:00 [kworker/1:2] root 387 0.0 0.0 0 0 ? S< 09:02 0:00 [kdmflush] root 388 0.0 0.0 0 0 ? S< 09:02 0:00 [bioset] root 398 0.0 0.0 0 0 ? S< 09:02 0:00 [kdmflush] root 400 0.0 0.0 0 0 ? S< 09:02 0:00 [bioset] root 413 0.0 0.0 0 0 ? S< 09:02 0:00 [bioset] root 414 0.0 0.0 0 0 ? S< 09:02 0:00 [xfsalloc] root 415 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs_mru_cache] root 416 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-buf/dm-0] root 417 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-data/dm-0] root 418 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-conv/dm-0] root 419 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-cil/dm-0] root 420 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-reclaim/dm-] root 421 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-log/dm-0] root 422 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-eofblocks/d] root 423 0.0 0.0 0 0 ? S 09:02 0:00 [xfsaild/dm-0] root 424 0.0 0.0 0 0 ? S< 09:02 0:00 [kworker/0:1H] root 493 0.0 0.0 39076 3224 ? Ss 09:02 0:00 /usr/lib/systemd/systemd-journald root 520 0.0 0.1 127256 4060 ? Ss 09:02 0:00 /usr/sbin/lvmetad -f root 529 0.0 0.1 47568 5232 ? Ss 09:02 0:00 /usr/lib/systemd/systemd-udevd root 548 0.0 0.0 0 0 ? S< 09:02 0:00 [nfit] root 613 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-buf/sda1] root 614 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-data/sda1] root 615 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-conv/sda1] root 616 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-cil/sda1] root 617 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-reclaim/sda] root 618 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-log/sda1] root 619 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-eofblocks/s] root 620 0.0 0.0 0 0 ? S 09:02 0:00 [xfsaild/sda1] root 623 0.0 0.0 0 0 ? S< 09:02 0:00 [kdmflush] root 624 0.0 0.0 0 0 ? S< 09:02 0:00 [bioset] root 631 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-buf/dm-2] root 632 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-data/dm-2] root 633 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-conv/dm-2] root 634 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-cil/dm-2] root 635 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-reclaim/dm-] root 636 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-log/dm-2] root 637 0.0 0.0 0 0 ? S< 09:02 0:00 [xfs-eofblocks/d] root 638 0.0 0.0 0 0 ? S 09:02 0:00 [xfsaild/dm-2] root 660 0.0 0.0 55508 896 ? S<sl 09:02 0:00 /sbin/auditd dbus 683 0.0 0.0 66432 2592 ? Ssl 09:02 0:00 /usr/bin/dbus-daemon --system --address=systemd: polkitd 686 0.0 0.3 539212 14932 ? Ssl 09:02 0:00 /usr/lib/polkit-1/polkitd --no-debug root 688 0.0 0.0 21668 1280 ? Ss 09:02 0:00 /usr/sbin/irqbalance --foreground root 689 0.0 0.0 26424 1796 ? Ss 09:02 0:00 /usr/lib/systemd/systemd-logind root 693 0.0 0.0 126284 1684 ? Ss 09:02 0:00 /usr/sbin/crond -n root 698 0.0 0.0 96520 2436 ? Ss 09:02 0:00 login -- root root 705 0.0 0.7 357852 28896 ? Ssl 09:02 0:00 /usr/bin/python -Es /usr/sbin/firewalld --nofork root 707 0.0 0.2 703892 11360 ? Ssl 09:02 0:00 /usr/sbin/NetworkManager --no-daemon root 754 0.0 0.0 0 0 ? S< 09:02 0:00 [kworker/2:1H] root 826 0.0 0.0 0 0 ? S< 09:02 0:00 [kworker/3:1H] root 838 0.0 0.1 107380 5444 ? S 09:02 0:00 /sbin/dhclient -d -q -sf /usr/libexec/nm-dhcp-he root 1021 0.0 0.4 573856 16996 ? Ssl 09:02 0:00 /usr/bin/python -Es /usr/sbin/tuned -l -P root 1022 0.0 0.1 112796 4296 ? Ss 09:02 0:00 /usr/sbin/sshd -D root 1023 0.0 0.2 216376 8708 ? Ssl 09:02 0:00 /usr/sbin/rsyslogd -n root 1170 0.0 0.0 89620 2060 ? Ss 09:02 0:00 /usr/libexec/postfix/master -w postfix 1176 0.0 0.1 89724 4048 ? S 09:02 0:00 pickup -l -t unix -u postfix 1177 0.0 0.1 89792 4076 ? S 09:02 0:00 qmgr -l -t unix -u root 1284 0.0 0.0 115432 1984 tty1 Ss+ 09:02 0:00 -bash root 1299 0.0 0.0 0 0 ? S< 09:02 0:00 [kworker/1:1H] root 1305 0.0 0.1 158800 5536 ? Ds 09:04 0:00 sshd: root@pts/0 root 1309 0.0 0.0 115436 2072 pts/0 Ss 09:04 0:00 -bash root 1455 0.0 0.0 0 0 ? S 09:15 0:00 [kworker/3:3] root 1477 0.0 0.0 344080 1064 ? Ssl 09:15 0:00 /usr/bin/memcached -d -u root root 3163 0.0 0.0 0 0 ? S 09:49 0:00 [kworker/2:1] root 3331 0.0 0.0 0 0 ? S 09:52 0:00 [kworker/0:1] root 3611 0.0 0.0 0 0 ? S 09:57 0:00 [kworker/0:0] root 3701 0.0 0.0 0 0 ? S 09:59 0:00 [kworker/2:0] root 3808 0.0 0.0 123256 760 ? Ss 10:01 0:00 /usr/sbin/anacron -s root 4194 0.0 0.0 155324 1864 pts/0 R+ 10:08 0:00 ps aux