■free -w -h

               total        used        free      shared     buffers       cache   available
Mem:           1.9Gi       958Mi       312Mi        41Mi       134Mi       800Mi       1.0Gi
Swap:          2.0Gi       588Mi       1.4Gi

■ps aux --sort -%mem

USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
mysql    2506832  0.8 15.7 2358288 317856 ?      Ssl   6月23 408:05 /usr/sbin/mysqld
nginx    2761534  0.0 13.5 274587428 272416 ?    Sl    7月16   4:30 dotnet WebApp.dll
root     2852767  0.2  3.3 1561996 68396 ?       Ssl   7月23   8:36 /usr/bin/python3 /usr/bin/fail2ban-server -xf start
root     2866364  0.0  2.4  74656 49152 ?        S<s   7月24   0:07 /usr/lib/systemd/systemd-journald
_fluentd 2506948  0.1  2.4 212860 48376 ?        Sl    6月23  72:42 /opt/fluent/bin/ruby -Eascii-8bit:ascii-8bit /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid --under-supervisor
root     2356603  0.0  1.3 288952 27008 ?        SLsl  6月09   7:09 /sbin/multipathd -d -s
ntpsec   2697909  0.0  0.9  85552 19892 ?        SLs   7月10   1:36 /usr/sbin/ntpd -p /run/ntpd.pid -c /etc/ntpsec/ntp.conf -g -N -u ntpsec:ntpsec
root           1  0.0  0.6  22600 13824 ?        Ss    2025  13:47 /usr/lib/systemd/systemd --system --deserialize=78
_fluentd 2506945  0.0  0.6 178796 13548 ?        Sl    6月23  17:30 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
root     2761511  0.0  0.6  39508 13092 ?        Ss    7月16   2:26 /usr/bin/python3 /usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf