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тАО06-08-2010 03:29 AM
тАО06-08-2010 03:29 AM
IDLE TIME is more
Recently i checked my linux machine with IOSTAT command. Result is
avg-cpu: %user(4.49),nice(0.00) %sys(2.03)
%iowait(36)
what might be reason like ? what to do reduce IOWAITs?
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тАО06-08-2010 05:36 AM
тАО06-08-2010 05:36 AM
Re: IDLE TIME is more
What's running on the server ?
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тАО06-08-2010 06:39 AM
тАО06-08-2010 06:39 AM
Re: IDLE TIME is more
A) do less I/O (tuning code or run code at different times to load-level).
B) have more hardware capacity to do more I/O with more controllers, more disks, faster array subsystems, etc.
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тАО06-08-2010 07:46 PM
тАО06-08-2010 07:46 PM
Re: IDLE TIME is more
>>what might be reason like ?
There is a IO bottleneck
What is the IO response time on your system?
>>what to do reduce IOWAITs?
You need to identify the bottleneck. Is your IO's directed to your local disk, storage array, EVA or XP ?
Bottlenecks can be the disk itself or the disk controller.
If response time to your disk not good then if it is a local disk you may need to replace it or if it is a SAN you may need think about reconfiguring it.
-Pramod.
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тАО06-08-2010 09:29 PM
тАО06-08-2010 09:29 PM
Re: IDLE TIME is more
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тАО06-08-2010 09:31 PM
тАО06-08-2010 09:31 PM
Re: IDLE TIME is more
its direct server only.
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тАО06-08-2010 09:44 PM
тАО06-08-2010 09:44 PM
Re: IDLE TIME is more
Please find ouput..
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тАО06-09-2010 07:02 AM
тАО06-09-2010 07:02 AM