■free -w -h

               total        used        free      shared     buffers       cache   available
Mem:           1.9Gi       1.0Gi       223Mi        27Mi       114Mi       818Mi       930Mi
Swap:          2.0Gi       914Mi       1.1Gi

■ps aux --sort -%mem

USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
mysql        948  0.8 21.3 2365856 429268 ?      Ssl   2025 630:57 /usr/sbin/mysqld
nginx      88680  0.0 11.3 274689904 228248 ?    Sl    2025  21:51 dotnet WebApp.dll
root       88476  0.2  2.6 1482948 54336 ?       Ssl   2025 147:49 /usr/bin/python3 /usr/bin/fail2ban-server -xf start
root         312  0.0  2.3  99668 47920 ?        S<s   2025   3:08 /usr/lib/systemd/systemd-journald
_fluentd    1199  0.1  2.3 212984 47508 ?        Sl    2025 110:06 /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         366  0.0  1.3 288952 27136 ?        SLsl  2025   7:28 /sbin/multipathd -d -s
ntpsec       798  0.0  0.9  85680 19936 ?        SLs   2025   5:16 /usr/sbin/ntpd -p /run/ntpd.pid -c /etc/ntpsec/ntp.conf -g -N -u ntpsec:ntpsec
nginx     436563  0.0  0.8  44840 16760 ?        S     2025   0:35 nginx: worker process
_fluentd    1196  0.0  0.6 178792 13380 ?        Sl    2025  27:01 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
root      575886  0.0  0.6 318356 12928 ?        Ssl   1月08   0:00 /usr/sbin/ModemManager