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PostPosted: Fri Sep 13, 2013 1:28 am 
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Joined: Mon Dec 28, 2009 8:48 pm
Posts: 102
My site hosted in a shared hosting on a linux server. From cpanel's resouce usage option, I can see that I/O limit for my site is 4096 and in peak time, my site often reaches to its I/O limit. As I don't know much about it and as I didn't find any details article about it after googling, I was unable to optimize my php scripts to reduce the I/O. The only thing I know about it, is Input-Output Process. Would someone explain it what is I/O and how can I reduce I/O?

Thanks in Advance.


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PostPosted: Fri Sep 13, 2013 1:59 am 
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Location: WA, USA
I/O means input-output. It's that generic. Maybe they mean bandwidth or bandwidth usage?

Ask them.


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PostPosted: Fri Sep 13, 2013 2:19 pm 
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Location: New York, NY, US
You may be able to reduce bandwidth by properly setting the cache controls in your HTTP headers. If the problem is not images, video, etc. being transferred. You could also rewrite some heavily used pages with Ajax to fetch the minimum HTML.

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PostPosted: Sat Nov 02, 2013 11:05 am 
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Joined: Wed Feb 11, 2004 4:23 pm
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Location: Palm beach, Florida
On my host this is disk IO. They don't limit me, they just display it so I can add more servers if it becomes a bottleneck. Your web host should be happy to tell you what it is, so they can sell you up.


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PostPosted: Thu Oct 30, 2014 2:39 am 
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Joined: Fri Oct 10, 2014 2:30 am
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How do you determine that the performance of your Linux server is I/O bound and, perhaps more importantly, what process or processes are causing the problem?


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