如何在Linux中找出内存消耗大的进程

它使用以下逻辑来计算内存使用量。总内存使用量 = sum(用于程序进程的专用内存使用量) + sum(用于程序进程的共享内存使用量)。

# ps_mem
 
 Private  +   Shared  =  RAM used    Program
128.0 KiB +  27.5 KiB = 155.5 KiB    agetty
228.0 KiB +  47.0 KiB = 275.0 KiB    atd
284.0 KiB +  53.0 KiB = 337.0 KiB    irqbalance
380.0 KiB +  81.5 KiB = 461.5 KiB    dovecot
364.0 KiB + 121.5 KiB = 485.5 KiB    log
520.0 KiB +  65.5 KiB = 585.5 KiB    auditd
556.0 KiB +  60.5 KiB = 616.5 KiB    systemd-udevd
732.0 KiB +  48.0 KiB = 780.0 KiB    crond
296.0 KiB + 524.0 KiB = 820.0 KiB    avahi-daemon (2)
772.0 KiB +  51.5 KiB = 823.5 KiB    systemd-logind
940.0 KiB + 162.5 KiB =   1.1 MiB    dbus-daemon
  1.1 MiB +  99.0 KiB =   1.2 MiB    pure-ftpd
  1.2 MiB + 100.5 KiB =   1.3 MiB    master
  1.3 MiB + 198.5 KiB =   1.5 MiB    pickup
  1.3 MiB + 198.5 KiB =   1.5 MiB    bounce
  1.3 MiB + 198.5 KiB =   1.5 MiB    pipe
  1.3 MiB + 207.5 KiB =   1.5 MiB    qmgr
  1.4 MiB + 198.5 KiB =   1.6 MiB    cleanup
  1.3 MiB + 299.5 KiB =   1.6 MiB    trivial-rewrite
  1.5 MiB + 145.0 KiB =   1.6 MiB    config
  1.4 MiB + 291.5 KiB =   1.6 MiB    tlsmgr
  1.4 MiB + 308.5 KiB =   1.7 MiB    local
  1.4 MiB + 323.0 KiB =   1.8 MiB    anvil (2)
  1.3 MiB + 559.0 KiB =   1.9 MiB    systemd-journald
  1.8 MiB + 240.5 KiB =   2.1 MiB    proxymap
  1.9 MiB + 322.5 KiB =   2.2 MiB    auth
  2.4 MiB +  88.5 KiB =   2.5 MiB    systemd
  2.8 MiB + 458.5 KiB =   3.2 MiB    smtpd
  2.9 MiB + 892.0 KiB =   3.8 MiB    bash (2)
  3.3 MiB + 555.5 KiB =   3.8 MiB    NetworkManager
  4.1 MiB + 233.5 KiB =   4.3 MiB    varnishd
  4.0 MiB + 662.0 KiB =   4.7 MiB    dhclient (2)
  4.3 MiB + 623.5 KiB =   4.9 MiB    rsyslogd
  3.6 MiB +   1.8 MiB =   5.5 MiB    sshd (3)
  5.6 MiB + 431.0 KiB =   6.0 MiB    polkitd
 13.0 MiB + 546.5 KiB =  13.6 MiB    tuned
 22.5 MiB +  76.0 KiB =  22.6 MiB    lfd - sleeping
 30.0 MiB +   6.2 MiB =  36.2 MiB    php-fpm (6)
  5.7 MiB +  33.5 MiB =  39.2 MiB    cwpsrv (3)
 20.1 MiB +  25.3 MiB =  45.4 MiB    httpd (5)
104.7 MiB + 156.0 KiB = 104.9 MiB    named
112.2 MiB + 479.5 KiB = 112.7 MiB    cache-main
 69.4 MiB +  58.6 MiB = 128.0 MiB    nginx (4)
203.4 MiB + 309.5 KiB = 203.7 MiB    mysqld
---------------------------------
                        775.8 MiB
=================================

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