■free -w -h

               total        used        free      shared     buffers       cache   available
Mem:           1.9Gi       1.0Gi       198Mi        35Mi       154Mi       799Mi       918Mi
Swap:          2.0Gi        16Mi       2.0Gi

■ps aux --sort -%mem

USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
mysql    1675029  0.8 23.0 2314908 464628 ?      Ssl  06:11   7:52 /usr/sbin/mysqld
nginx    1674999  0.0 10.2 274654148 206116 ?    Sl   06:11   0:28 dotnet WebApp.dll
root     1674870  0.2  3.7 1544776 75356 ?       Ssl  06:11   1:59 /usr/bin/python3 /usr/bin/fail2ban-server -xf start
_fluentd 1674987  0.1  3.6 186160 73360 ?        Sl   06:11   1:18 /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
_fluentd 1674984  0.0  2.5 174636 52060 ?        Sl   06:11   0:20 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
root     1674991  0.0  1.4  39500 28928 ?        Ss   06:11   0:09 /usr/bin/python3 /usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf
root     1498105  0.0  1.3 223416 27008 ?        SLsl  3月26   2:16 /sbin/multipathd -d -s
ntpsec   1674731  0.0  0.9  85676 20012 ?        SLs  06:11   0:04 /usr/sbin/ntpd -p /run/ntpd.pid -c /etc/ntpsec/ntp.conf -g -N -u ntpsec:ntpsec
root     1674740  0.0  0.7  33940 14592 ?        S<s  06:11   0:02 /usr/lib/systemd/systemd-journald
root           1  0.0  0.6  22248 13312 ?        Ss    2025   7:45 /usr/lib/systemd/systemd --system --deserialize=78