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■free -w -h
               total        used        free      shared     buffers       cache   available
Mem:           1.9Gi       1.1Gi       122Mi        34Mi       131Mi       846Mi       874Mi
Swap:          2.0Gi        11Mi       2.0Gi

■ps aux --sort -%mem
USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
mysql     258625  0.6 23.9 2313556 482500 ?      Ssl   2月08  29:07 /usr/sbin/mysqld
nginx     258646  0.0 11.5 274653940 232884 ?    Sl    2月08   0:55 dotnet WebApp.dll
_fluentd  258563  0.1  3.6 208704 73508 ?        Sl    2月08   5:46 /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      258467  0.1  2.6 1445652 52500 ?       Ssl   2月08   8:38 /usr/bin/python3 /usr/bin/fail2ban-server -xf start
_fluentd  258559  0.0  2.5 178736 51384 ?        Sl    2月08   1:30 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
root      258324  0.0  2.4  73056 49280 ?        S<s   2月08   0:09 /usr/lib/systemd/systemd-journald
root      258608  0.0  1.4  39488 28856 ?        Ss    2月08   0:42 /usr/bin/python3 /usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf
root      258299  0.0  1.3 223416 27008 ?        SLsl  2月08   0:25 /sbin/multipathd -d -s
ntpsec    258297  0.0  0.9  85672 20080 ?        SLs   2月08   0:18 /usr/sbin/ntpd -p /run/ntpd.pid -c /etc/ntpsec/ntp.conf -g -N -u ntpsec:ntpsec
root           1  0.0  0.6  22160 13440 ?        Ss    1月12   1:25 /usr/lib/systemd/systemd --system --deserialize=72