nenhum disco io mas iowait muito alto

1

não há resultados de disco io indo de iotop

Total DISK READ: 0.00 B/s | Total DISK WRITE: 0.00 B/s
  TID  PRIO  USER     DISK READ  DISK WRITE  SWAPIN     IO<    COMMAND
    1 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % init [3]
 1930 be/4 named       0.00 B/s    0.00 B/s  0.00 %  0.00 % named -u ~d/run-root
 1931 be/4 named       0.00 B/s    0.00 B/s  0.00 %  0.00 % named -u ~d/run-root
 1932 be/4 named       0.00 B/s    0.00 B/s  0.00 %  0.00 % named -u ~d/run-root
 1933 be/4 named       0.00 B/s    0.00 B/s  0.00 %  0.00 % named -u ~d/run-root
 1810 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % sh /usr/b~user=mysql
 9795 be/4 apache      0.00 B/s    0.00 B/s  0.00 %  0.00 % httpd
 8004 be/4 apache      0.00 B/s    0.00 B/s  0.00 %  0.00 % httpd
 3226 be/4 postfix     0.00 B/s    0.00 B/s  0.00 %  0.00 % tlsmgr -l -t unix -u
 8154 be/4 apache      0.00 B/s    0.00 B/s  0.00 %  0.00 % httpd
 9759 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % find -name php.ini
 9249 be/4 apache      0.00 B/s    0.00 B/s  0.00 %  0.00 % httpd
 1756 be/4 postfix     0.00 B/s    0.00 B/s  0.00 %  0.00 % psa-pc-re~@localhost
 1863 be/4 mysql       0.00 B/s    0.00 B/s  0.00 %  0.00 % mysqld --~mysql.sock
 3123 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % crond
 1758 be/4 postfix     0.00 B/s    0.00 B/s  0.00 %  0.00 % psa-pc-re~@localhost
 1865 be/4 mysql       0.00 B/s    0.00 B/s  0.00 %  0.00 % mysqld --~mysql.sock
 1592 be/4 sw-cp-se    0.00 B/s    0.00 B/s  0.00 %  0.00 % sw-cp-ser~ver/config
 7612 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % sshd: root@pts/0
 7614 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % sftp-server
 7615 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % -bash
 1602 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % sshd
 8003 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % httpd

mas iowait muito alto?

relatório iostat

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
           0.83    0.00    0.13   13.83    0.00   85.20

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn

o servidor roda como um caracol, o que poderia estar errado aqui?

obrigado

    
por Dan 11.09.2012 / 02:49

1 resposta

0

O iowait pode estar esperando por qualquer coisa relacionada ao io. Isso inclui rede, USB, PCI e outros dispositivos. Tente usar o iftop para ver o que sua rede está fazendo e considere a remoção de dispositivos do sistema.

    
por 11.09.2012 / 03:50

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