如何在 Linux 中找出内存消耗最大的进程

我不是女神ヾ 2022-12-13 14:26 143阅读 0赞

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# ps aux --sort -rss | head
    USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
    mysql     1064  3.2  5.4 886076 209988 ?       Ssl  Oct25  62:40 /usr/sbin/mysqld
    varnish  23396  0.0  2.9 286492 115616 ?       SLl  Oct25   0:42 /usr/sbin/varnishd -P /var/run/varnish.pid -f /etc/varnish/default.vcl -a :82 -T 127.0.0.1:6082 -S /etc/varnish/secret -s malloc,256M
    named     1105  0.0  2.7 311712 108204 ?       Ssl  Oct25   0:16 /usr/sbin/named -u named -c /etc/named.conf
    nobody   23377  0.2  2.3 153096 89432 ?        S    Oct25   4:35 nginx: worker process
    nobody   23376  0.1  2.1 147096 83316 ?        S    Oct25   2:18 nginx: worker process
    root     23375  0.0  1.7 131028 66764 ?        Ss   Oct25   0:01 nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx.conf
    nobody   23378  0.0  1.6 130988 64592 ?        S    Oct25   0:00 nginx: cache manager process
    root      1135  0.0  0.9  86708 37572 ?        S    05:37   0:20 cwpsrv: worker process
    root      1133  0.0  0.9  86708 37544 ?        S    05:37   0:05 cwpsrv: worker process

使用以下 `ps` 命令格式可在输出中仅展示有关内存消耗过程的特定信息。

# ps -eo pid,ppid,%mem,%cpu,cmd --sort=-%mem | head
      PID  PPID %MEM %CPU CMD
     1064     1  5.4  3.2 /usr/sbin/mysqld
    23396 23386  2.9  0.0 /usr/sbin/varnishd -P /var/run/varnish.pid -f /etc/varnish/default.vcl -a :82 -T 127.0.0.1:6082 -S /etc/varnish/secret -s malloc,256M
     1105     1  2.7  0.0 /usr/sbin/named -u named -c /etc/named.conf
    23377 23375  2.3  0.2 nginx: worker process
    23376 23375  2.1  0.1 nginx: worker process
     3625   977  1.9  0.0 /usr/local/bin/php-cgi /home/daygeekc/public_html/index.php
    23375     1  1.7  0.0 nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx.conf
    23378 23375  1.6  0.0 nginx: cache manager process
     1135  3034  0.9  0.0 cwpsrv: worker process

如果你只想查看命令名称而不是命令的绝对路径，请使用下面的 `ps` 命令格式。

# ps -eo pid,ppid,%mem,%cpu,comm --sort=-%mem | head
      PID  PPID %MEM %CPU COMMAND
     1064     1  5.4  3.2 mysqld
    23396 23386  2.9  0.0 cache-main
     1105     1  2.7  0.0 named
    23377 23375  2.3  0.2 nginx
    23376 23375  2.1  0.1 nginx
    23375     1  1.7  0.0 nginx
    23378 23375  1.6  0.0 nginx
     1135  3034  0.9  0.0 cwpsrv
     1133  3034  0.9  0.0 cwpsrv

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