top -m io
PID USERNAME VCSW IVCSW READ WRITE FAULT TOTAL PERCENT COMMAND
88837 www 1218 488 0 2 0 2 40.00% nginx
88836 www 1310 316 0 1 0 1 20.00% nginx
88838 www 1578 655 0 2 0 2 40.00% nginx
88839 www 1275 261 0 0 0 0 0.00% nginx
90349 www 8 0 0 0 0 0 0.00% php-cgi
90521 www 2 0 0 0 0 0 0.00% php-cgi
90488 www 7 113 0 0 0 0 0.00% php-cgi
90502 www 2 0 0 0 0 0 0.00% php-cgi
797 root 1 0 0 0 0 0 0.00% snmpd
837 root 6 0 0 0 0 0 0.00% watchdogd
852 root 0 0 0 0 0 0 0.00% sendmail
846 root 0 0 0 0 0 0 0.00% sshd
639 root 0 0 0 0 0 0 0.00% syslogd
90487 www 8 43 0 0 0 0 0.00% php-cgi

Статистика нагрузки по gstat в начале общения.