Hey, this is an English text. I want you to translate it into the Tunisian dialect. Please follow these steps:
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The basics Know your system The best way to tune a system is to target the bottlenecks, that is the subsystems that limit the overall speed. They usually can be identified by knowing the specifications of the system, but there are some basic indications: If the computer becomes slow when big applications, like OpenOffice.org and Firefox, are running at the same time, then there is a good chance the amount of RAM is insufficient. To verify available RAM, use this command, and check for the line beginning with -/+buffers: $ free -m If boot time is really slow, and if applications take a lot of time to load the first time they are launched, but run fine afterwards, then the hard drive is probably too slow. The speed of a hard drive can be measured using the hdparm command: $ hdparm -t /dev/harddrive This is only the pure read speed of the hard drive, and is not a valid benchmark, but a value superior to 40MB/s (assuming drive tested while idle) can be considered decent on an average system. If the CPU load is consistently high even when RAM is available, then lowering CPU usage should be a priority. CPU load can be monitored in many ways, like using the top command: $ top If the only applications lagging are the ones using direct rendering, meaning they use the graphic card, like video players and games, then improving the graphic performance should help. First step would be to verify if direct rendering simply is not enabled. This is indicated by the glxinfo command: $ glxinfo | grep direct The first thing to do The simplest and most efficient way of improving overall performance is to run lightweight environments and applications. Remove unnecessary daemons and background what daemons you can in /etc/rc.conf. Compromise Almost all tuning brings drawbacks. Lighter applications usually come with less features and some tweaks may make a system unstable, or simply require time to implement and maintain. This page tries to highlight those drawbacks, but the final judgment rests on the user. Benchmarking The effects of optimization are often difficult to judge. They can however be measured by benchmarking tools Storage devices Device Layout One of the the biggest performance gains comes from having multiple storage devices in a layout that spreads the operating system work around. Having //home/var/usr/lib on separate disks is dramatically faster than a single disk layout where they are all on the same hard drive. Swap Files Creating your swap files on a separate disk can also help quite a bit, especially if your machine swaps frequently or you have less than 8G of RAM. RAID Benefits If you have multiple disks (2 or more) available, you can set them up as a software RAID for serious speed improvements. In a RAID 0 array there is no redundancy in case of drive failure, but for each additional disk you add to the array, the speed of the disk becomes that much faster. The