■free -w -h

               total        used        free      shared     buffers       cache   available
Mem:           1.9Gi       1.0Gi       244Mi        40Mi       134Mi       798Mi       939Mi
Swap:          2.0Gi       367Mi       1.6Gi

■ps aux --sort -%mem

USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
mysql    2951694  0.8 19.0 2356636 384572 ?      Ssl   7月31 296:53 /usr/sbin/mysqld
nginx    3182442  0.0 11.2 274648064 227360 ?    Sl    8月19   1:59 dotnet WebApp.dll
root     3091265  0.0  3.8 165520 77184 ?        S<s   8月12   0:35 /usr/lib/systemd/systemd-journald
root     3096153  0.2  3.2 1562004 66360 ?       Ssl   8月12  33:37 /usr/bin/python3 /usr/bin/fail2ban-server -xf start
_fluentd 2951707  0.1  2.4 212856 49488 ?        Sl    7月31  52:27 /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     3182418  0.0  1.4  39508 28988 ?        Ss    8月19   1:00 /usr/bin/python3 /usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf
root     3096011  0.0  1.3 223416 27008 ?        SLsl  8月12   1:42 /sbin/multipathd -d -s
ntpsec   3095999  0.0  0.9  85552 19876 ?        SLs   8月12   1:09 /usr/sbin/ntpd -p /run/ntpd.pid -c /etc/ntpsec/ntp.conf -g -N -u ntpsec:ntpsec
_fluentd 2951704  0.0  0.6 178728 13940 ?        Sl    7月31  12:40 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
root           1  0.0  0.6  22540 13184 ?        Ss    2025  15:22 /usr/lib/systemd/systemd --system --deserialize=83