Re: IO latency - a special case

From: Arjan van de Ven
Date: Sat Jun 13 2009 - 02:16:19 EST


On Fri, 12 Jun 2009 23:51:19 -0600
"Trenton D. Adams" <trenton.d.adams@xxxxxxxxx> wrote:
>
> Right now, just during normal system usage, it's showing...
> Cause Maximum
> Percentage poll_schedule_timeout do_sys_poll sys_poll sysente 5.0
> msec 58.0 % futex_wait do_futex compat_sys_futex
> sysenter_disp 5.0 msec 40.3 % blk_execute_rq scsi_execute
> scsi_execute_req scsi_ 3.9 msec 0.2 % blk_execute_rq
> scsi_execute scsi_execute_req sd_re 3.5 msec 0.2 %
> poll_schedule_timeout do_select core_sys_select sy 3.4 msec
> 0.3 % blk_execute_rq scsi_execute scsi_execute_req sr_te 2.6
> msec 0.5 % blk_execute_rq scsi_execute scsi_execute_req
> sr_te 2.2 msec 0.5 % blk_execute_rq scsi_execute
> sr_do_ioctl sr_packet 0.9 msec 0.1 % blk_execute_rq
> scsi_execute scsi_execute_req ioctl 0.6 msec 0.0 % release
> __blkdev_put blkdev_put blkdev_close __fput

this shows it's not correctly installed....

(and it's likely an older version)


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Arjan van de Ven Intel Open Source Technology Centre
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