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Dear all,<br><br>I have a virtual machine with the following specs:<br><br>Core 2 DUO 3.2 GHZ<br>4 GB RAM<br>hdd: IDE 320 GB <br>32 bit<br>OS: centos 5.2<br><br><br>I'm using it for local development with a number of Virtual hosts, and a big mysql database.<br><br>the prob:<br><br><br>At times, with no specific reason. system becomes extremly slugish.<br>http requests takes forever to be served.<br>Even ssh connections takes time to connect, and a simple command such as "clear" takes anywhere between 3 to 10 seconds to execute.<br><br>i've checked TOP, over and over again and it's always within the following:<br><br>CPU load average is max 10 % , and at that specific time it's never above 30 %<br>RAM: swap is never used, there's always around 1.5 GB of free memory<br><br><br>so it's not a matter of CPU nor RAM.<br>so my next thought were that HDD is maxing out on the hosting physical server. <br>i checked on the physical server, and HDD I/O is within normal range. and other VMs workign on the same physical server are running smoothly..<br><br>so what can i do more to troubleshoot? <br>this is happening more than it should without any scenario in common.<br><br>any advice on how to troubleshoot would be greatly appreciated...<br><br><br>PS: any command that may show I/O in KB/MB on the HDD ? <br><br> </body>
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