■free -w -h

               total        used        free      shared     buffers       cache   available
Mem:           1.9Gi       1.1Gi       175Mi        30Mi       124Mi       803Mi       873Mi
Swap:          2.0Gi       736Mi       1.3Gi

■ps aux --sort -%mem

USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
mysql     175510  0.8 23.4 2329788 472104 ?      Ssl   5月08  15:15 /usr/sbin/mysqld
nginx      32379  0.0 11.3 274738852 229080 ?    Sl    4月24  11:34 dotnet WebApp.dll
_fluentd  175653  0.1  3.4 203488 70240 ?        Sl    5月08   2:33 /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         781  0.1  3.2 1448396 66208 ?       Ssl   4月21  50:08 /usr/bin/python3 /usr/bin/fail2ban-server -xf start
root         313  0.0  3.1 124112 63028 ?        S<s   4月21   0:52 /usr/lib/systemd/systemd-journald
_fluentd  175650  0.0  2.5 179024 52008 ?        Sl    5月08   0:39 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
root         365  0.0  1.3 288952 27008 ?        SLsl  4月21   2:28 /sbin/multipathd -d -s
ntpsec       800  0.0  0.9  85680 20000 ?        SLs   4月21   1:37 /usr/sbin/ntpd -p /run/ntpd.pid -c /etc/ntpsec/ntp.conf -g -N -u ntpsec:ntpsec
root         799  0.0  0.6  39620 12760 ?        Ss    4月21   4:19 /usr/bin/python3 /usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf
nginx      64447  0.0  0.5  40820 11584 ?        S     4月27   0:16 nginx: worker process