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■free -w -h
               total        used        free      shared     buffers       cache   available
Mem:           1.9Gi       870Mi       270Mi        35Mi       143Mi       891Mi       1.1Gi
Swap:          2.0Gi       255Mi       1.8Gi

■ps aux --sort -%mem
USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
mysql        944  0.7 16.4 2334008 332140 ?      Ssl  10月04 151:08 /usr/sbin/mysqld
nginx     143237  0.0 11.4 274509328 230708 ?    Sl   10月17   0:27 dotnet WebApp.dll
root         776  0.1  3.8 1465176 76544 ?       Ssl  10月04  38:17 /usr/bin/python3 /usr/bin/fail2ban-server -xf start
_fluentd    1165  0.1  2.9 208824 58912 ?        Sl   10月04  27:06 /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         311  0.0  2.2  91408 44936 ?        S<s  10月04   0:42 /usr/lib/systemd/systemd-journald
root      143213  0.0  1.4  39496 28984 ?        Ss   10月17   0:11 /usr/bin/python3 /usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf
root         363  0.0  1.3 288952 26880 ?        SLsl 10月04   1:53 /sbin/multipathd -d -s
ntpsec       792  0.0  0.9  85680 20064 ?        SLs  10月04   1:16 /usr/sbin/ntpd -p /run/ntpd.pid -c /etc/ntpsec/ntp.conf -g -N -u ntpsec:ntpsec
_fluentd    1162  0.0  0.6 178792 13892 ?        Sl   10月04   6:22 /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  22824 13740 ?        Ss   10月04   0:41 /sbin/init