iowait


How iowait impacts System performance System or any server’s performance heavily depends on IOPS. And if MySql is running on the System, it requires disk of high IOPS. Lots of select queries running simultaneously cause high iowait if disk dont have high IOPS. High iowait means cpu is waiting for I/O access. That increase the…

Configure Xdebug with netbeans and PHP


Xdebug’s Profiler is a powerful tool that gives you the ability to analyze your PHP code and determine bottlenecks or generally see which parts of your code are slow and could use a speed boost. Here are the following steps for you to installing and configuring xdebug with netbeans Install the Firefox plugin by given URL:    …

Changing the hostname or computer name in ubuntu


Here is the very simple steps to change the hostname provided during the installation of Ubuntu: Edit /etc/hostname and change to the new value. vi /etc/hostname 127.0.0.1 localhost 127.0.1.1 ubuntu.local ubuntu # change to your new hostname/xyz Now after a reboot, your hostname will be the new one you chose.