现在可能是最终解决了,参照国外ubuntu论坛上的方法: 编辑/etc/modprobe.d/aliases.conf,加入以下三行: alias cdrom off alias ide_cd_mod off alias sr_mod off 编辑/etc/rc.local,加入相应的三行: rmmod ide_cd_mod rmmod sr_mod rmmod cdrom 现在await大大减小,“卡”的感觉没有了: $ iostat -x Linux 2.6.32-5-686 (debian) 10/04/2010 _i686_ (1 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 7.41 0.00 25.88 0.34 0.00 66.36 Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm %util sda 0.04 2.90 0.33 0.79 38.96 29.60 60.87 0.08 74.93 4.87 0.55
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