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[ubuntu] SSD poor performances

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linux-howto

http://ubuntuforums.org – Hello, I have a new PC (Asrock 970 Extreme4, FX-8120, 8GB RAM, SSD Samsung 840 128GB) with Ubuntu 12.04. I did the following: Mounting partitions with the options noatime and discard Minimise writes with tpmfs in RAM Enable Automatic TRIM => Tested OK Change I/O Scheduler => Tested OK Change swappiness SSD firmware is up-to-date M/B firmware is up-to-date Now I test the SSD performance according to https://wiki.archlinux.org/index.php/SSD_Benchmarking My results are: Quote: sudo hdparm -Tt /dev/sda /dev/sda: Timing cached reads: 9036 (Hardware)