Note: hdparm indicates only the pure read speed of a hard drive, and is not a valid benchmark. The speed of a hard drive can be measured with the hdparm command: # hdparm -t /dev/sd X If boot time is slow, and applications take a long time to load at first launch (only), then the hard drive is likely to blame.Use the following command, and check the "available" column: $ free -h If the computer becomes slow when large applications (such as LibreOffice and Firefox) run at the same time, check if the amount of RAM is sufficient.The system specifications can help identify them. The best way to tune a system is to target bottlenecks, or subsystems which limit overall speed. See also Gaming#Improving performance for additional gaming and low latency specific advice. This article provides information on basic system diagnostics relating to performance as well as steps that may be taken to reduce resource consumption or to otherwise optimize the system with the end-goal being either perceived or documented improvements to a system's performance.
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